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Taxa grouped by families - click on CAAB code to see taxon report.
Restricted to: Animalia (kingdom) Cnidaria (phylum) Hydrozoa (class)
- Abyla haeckeli Lens & van Riemsdijk, 1908 [a siphonophore] 11 091005
- Abyla spp. [a siphonophore] 11 091904
- Abylopsis eschscholtzii (Huxley, 1859) [a siphonophore] 11 091003
- Abylopsis tetragona (Otto, 1823) [a siphonophore] 11 091002
- Abylopsis spp. [a siphonophore] 11 091901
- Bassia bassensis (Quoy & Gaimard, 1827) [a siphonophore] 11 091001
- Bassia spp. [a siphonophore] 11 091903
- Ceratocymba sagittata (Huxley, 1859) [a siphonophore] 11 091004
- Ceratocymba spp. [a siphonophore] 11 091902
- Abylidae - undifferentiated siphonophores 11 091000
- Aequorea australis Uchida, 1947 [a hydromedusa] 11 066007
- Aequorea conica Browne, 1905 [a hydromedusa] 11 066009
- Aequorea forskalea Peron & Lesueur, 1810 [a hydromedusa] 11 066010
- Aequorea kurangai Gershwin, Zeidler & Davie, 2010 [a hydromedusa] 11 066003
- Aequorea macrodactyla (Brandt, 1838) [a hydromedusa] 11 066004
- Aequorea parva Browne, 1905 [a hydromedusa] 11 066008
- Aequorea pensilis (Eschscholtz, 1829) [a hydromedusa] 11 066002
- Aequorea spp. [a hydromedusa] 11 066901
- Aldersladia magnificus Gershwin, 2006 [a hydromedusa] 11 066001
- Aldersladia spp. 11 066902
- Aequoreidae - undifferentiated hydromedusae 11 066000
- Agalma elegans (Sars, 1846) [a siphonophore] 11 100006
- Agalma okenii Eschscholtz, 1846 [a siphonophore] 11 100007
- Agalma spp. [a siphonophore] 11 100901
- Halistemma cupulifera Lens & van Riemsdijk, 1908 [a siphonophore] 11 100002
- Halistemma foliacea (Quoy & Gaimard, 1833) [a siphonophore] 11 100004
- Halistemma rubrum (Vogt, 1846) [a siphonophore] 11 100008
- Halistemma striata Totton, 1965 [a siphonophore] 11 100003
- Halistemma spp. [a siphonophore] 11 100903
- Marrus antarcticus Totton, 1954 [a siphonophore] 11 100009
- Marrus spp. [a siphonophore] 11 100905
- Nanomia bijuga (Delle Chiaje, 1841) [a siphonophore] 11 100001
- Nanomia spp. [a siphonophore] 11 100902
- Agalmatidae - undifferentiated siphonophores 11 100911
- Aglaophenia acanthocarpa Allman, 1876 [a hydroid] 11 064039
- Aglaophenia billardi Bale, 1914 [a hydroid] 11 064036
- Aglaophenia brachiata (Lamarck, 1816) [a hydroid] 11 064022
- Aglaophenia calycifera Bale, 1914 [a hydroid] 11 064046
- Aglaophenia carinifera Bale, 1914 [a hydroid] 11 064006
- Aglaophenia ctenata (Totton, 1930) [a hydroid] 11 064040
- Aglaophenia difficilis Vervoort & Watson, 2003 [a hydroid] 11 064041
- Aglaophenia digitulus Vervoort & Watson, 2003 [a hydroid] 11 064042
- Aglaophenia divaricata divaricata (Busk, 1852) [a hydroid] 11 064007
- Aglaophenia divaricata cystifera Bale, 1915 [a hydroid] 11 064023
- Aglaophenia hystrix Vervoort & Watson, 2003 [a hydroid] 11 064043
- Aglaophenia laxa Allman, 1876 [a hydroid] 11 064044
- Aglaophenia parvula Bale, 1882 [a hydroid] 11 064031
- Aglaophenia plumosa Bale, 1882 [a hydroid] 11 064035
- Aglaophenia postdentata Billard, 1913 [a hydroid] 11 064024
- Aglaophenia pseudoplumosa Watson, 1997 [a hydroid] 11 064025
- Aglaophenia recherchia Watson, 2005 [a hydroid] 11 064026
- Aglaophenia sinuosa Bale, 1888 [a hydroid] 11 064002
- Aglaophenia subspiralis Vervoort & Watson, 2003 [a hydroid] 11 064045
- Aglaophenia tasmanica Bale, 1914 [a hydroid] 11 064037
- Aglaophenia spp. [a hydroid] 11 064901
- Carpocladus fertilis Vervoort & Watson, 2003 [a hydroid] 11 064047
- Carpocladus spp. [a hydroid] 11 064905
- Cladocarpus bathyzonatus Ritchie, 1911 [a hydroid] 11 064071
- Cladocarpus spp. [a hydroid] 11 064909
- Gymnangium ascidioides (Bale, 1882) [a hydroid] 11 064005
- Gymnangium aureum (Watson, 1973) [a hydroid] 11 064027
- Gymnangium australimage Watson, 2005 [a hydroid] 11 064028
- Gymnangium birostratum (Bale, 1914) [a hydroid] 11 064050
- Gymnangium expansum (Jäderholm, 1903) [a hydroid] 11 064048
- Gymnangium explorationis Vervoort & Watson, 2003 [a hydroid] 11 064049
- Gymnangium hians (Busk, 1852) [a hydroid] 11 064011
- Gymnangium humile (Bale, 1884) [a hydroid] 11 064010
- Gymnangium ilicistomum (Bale, 1882) [a hydroid] 11 064029
- Gymnangium japonicum Watson & Vervoort, 2001 [a hydroid] 11 064015
- Gymnangium longirostre (Kirchenpauer, 1876) [a hydroid] 11 064030
- Gymnangium prolifer (Bale, 1882) [a hydroid] 11 064009
- Gymnangium pusillum Watson, 2018 [a hydroid] 11 064052
- Gymnangium superbum (Bale, 1882) [a hydroid] 11 064004
- Gymnangium tubuliferum (Bale, 1914) [a hydroid] 11 064051
- Gymnangium undulatum Watson, 2000 [a hydroid] 11 064013
- Gymnangium vegae (Jäderholm, 2018) [a hydroid] 11 064053
- Gymnangium spp. [a hydroid] 11 064902
- Lytocarpia alata Vervoort & Watson, 2003 [a hydroid] 11 064054
- Lytocarpia angulosa (Lamarck, 1816) [a hydroid] 11 064016
- Lytocarpia billardi (Bale, 1914) [a hydroid] 11 064065
- Lytocarpia brevirostris (Busk, 1852) [a hydroid] 11 064001
- Lytocarpia carinifera (Bale, 1914) [a hydroid] 11 064066
- Lytocarpia chiltoni (Bale, 1924) [a hydroid] 11 064055
- Lytocarpia delicatula (Busk, 1852) [a hydroid] 11 064008
- Lytocarpia epizoica Vervoort & Watson, 2003 [a hydroid] 11 064056
- Lytocarpia howensis (Briggs, 1918) [a hydroid] 11 064057
- Lytocarpia incisa (Coughtrey, 1875) [a hydroid] 11 064058
- Lytocarpia lepida Watson & Vervoort, 2001 [a hydroid] 11 064021
- Lytocarpia megalocarpa (Bale, 1914) [a hydroid] 11 064067
- Lytocarpia orientalis (Billard, 1908) [a hydroid] 11 064014
- Lytocarpia phyteuma (Kirchenpauer, 1876) [a hydroid] 11 064017
- Lytocarpia rigida Vervoort & Watson, 2003 [a hydroid] 11 064059
- Lytocarpia similis Vervoort & Watson, 2003 [a hydroid] 11 064060
- Lytocarpia spiralis (Totton, 1930) [a hydroid] 11 064061
- Lytocarpia striata Vervoort & Watson, 2003 [a hydroid] 11 064062
- Lytocarpia subdichotoma (Ralph, 1961) [a hydroid] 11 064063
- Lytocarpia tenuissima (Bale, 1914) [a hydroid] 11 064038
- Lytocarpia vulgaris Vervoort & Watson, 2003 [a hydroid] 11 064064
- Lytocarpia spp. [a hydroid] 11 064903
- Macrorhynchia ambigua Watson, 2000 [a hydroid] 11 064019
- Macrorhynchia mulderi (Bartlett, 1907) [a hydroid] 11 064033
- Macrorhynchia philippina (Kirchenpauer, 1872) [a hydroid] 11 064003
- Macrorhynchia phoenicea (Busk, 1852) [a hydroid] 11 064018
- Macrorhynchia quadriarmata Watson, 2000 [a hydroid] 11 064020
- Macrorhynchia whiteleggei (Bale, 1888) [a hydroid] 11 064034
- Macrorhynchia spp. [a hydroid] 11 064904
- Monoserius pennarius (Linnaeus, 1758) [a hydroid] 11 064068
- Monoserius spp. [a hydroid] 11 064907
- Taxella gracilicaulis (Jäderholm, 1903) [a hydroid] 11 064032
- Taxella longicornis (Busk, 1852) [a hydroid] 11 064012
- Taxella spp. [a hydroid] 11 064906
- Wanglaophenia longicarpa Vervoort & Watson, 2003 [a hydroid] 11 064069
- Wanglaophenia rostrifrons Vervoort & Watson, 2003 [a hydroid] 11 064070
- Wanglaophenia spp. [a hydroid] 11 064908
- Aglaopheniidae - undifferentiated hydroids 11 064000
- Bimeria australis Blackburn, 1937 [a hydroid] 11 006002
- Bimeria corynopsis Vanhöffen, 1910 [a hydroid] 11 006005
- Bimeria currumbinensis Pennycuik, 1959 [a hydroid] 11 006003
- Bimeria lutea Watson, 2016 [a hydroid] 11 006008
- Bimeria spp. [a hydroid] 11 006901
- Bougainvillia aurantiaca Bouillon, 1980 [a hydroid] 11 006009
- Bougainvillia balei Stechow, 1924 [a hydroid] 11 006001
- Bougainvillia dimorpha Schuchert, 1996 [a hydroid] 11 006010
- Bougainvillia fulva A. Agassiz & Mayer, 1899 [a hydroid] 11 006011
- Bougainvillia macloviana Lesson, 1830 [a hydroid] 11 006006
- Bougainvillia muscoides (Sars, 1846) [a hydroid] 11 006012
- Bougainvillia muscus (Allman, 1863) [a hydroid] 11 006013
- Bougainvillia platygaster (Haeckel, 1879) [a hydroid] 11 006014
- Bougainvillia superciliaris (L. Agassiz, 1849) [a hydroid] 11 006015
- Bougainvillia vervoorti Bouillon, 1995 [a hydroid] 11 006016
- Bougainvillia spp. [a hydroid] 11 006902
- Dicoryne conybearei (Allman, 1995) [a hydroid] 11 006017
- Dicoryne spp. [a hydroid] 11 006905
- Garveia clevelandensis Pennycuik, 1959 [a hydroid] 11 006004
- Garveia spp. 11 006903
- Koellikerina maasi (Browne, 1910) [a hydroid] 11 006018
- Koellikerina spp. [a hydroid] 11 006906
- Rhizorhagium antarcticum (Hickson & Gravely, 1907) [a hydroid] 11 006007
- Rhizorhagium spp. [a hydroid] 11 006904
- Bougainvilliidae - undifferentiated hydroids 11 006000
- Bythotiara murrayi Günther, 1903 [a hydroid] 11 039002
- Bythotiara parasitica (Kirk, 1915) [a hydroid] 11 039003
- Bythotiara spp. [a hydroid] 11 039903
- Calycopsis bigelowi Vanhöffen, 1911 [a hydroid] 11 039004
- Calycopsis spp. [a hydromedusa] 11 039901
- Heterotiara ausgeoana Gershwin & Zeidler, 2003 [a hydroid] 11 039001
- Heterotiara spp. 11 039902
- Bythotiaridae - undifferentiated hydroids 11 039000
- Campanularia antarctica Stechow, 1922 [a hydroid] 11 044022
- Campanularia diverticulata (Totton, 1930) [a hydroid] 11 044011
- Campanularia gaussica Stechow, 1923 [a hydroid] 11 044005
- Campanularia hicksoni Totton, 1930 [a hydroid] 11 044007
- Campanularia laminocarpa Millard, 1966 [a hydroid] 11 044023
- Campanularia nuytsensis Watson, 2003 [a hydroid] 11 044006
- Campanularia spp. [a hydroid] 11 044901
- Clytia elongata Marktanner-Turneretscher, 1890 [a hydroid] 11 044027
- Clytia gigantea (Hincks, 1866) [a hydroid] 11 044028
- Clytia gregaria (L. Agassiz, 1862) [a hydroid] 11 044029
- Clytia hemisphaerica (Linnaeus, 1767) [a hydroid] 11 044008
- Clytia linearis (Thornely, 1900) [a hydroid] 11 044009
- Clytia malayense (Kramp, 1961) [a hydroid] 11 044030
- Clytia rangiroae (A. Agassiz & Mayer, 1902) [a hydroid] 11 044031
- Clytia simplex (Browne, 1902) [a hydroid] 11 044032
- Clytia stolonifera Blackburn, 1938 [a hydroid] 11 044014
- Clytia spp. [a hydroid] 11 044902
- Gonothyraea loveni (Allman, 1859) [a hydroid] 11 044018
- Gonothyraea spp. [a hydroid] 11 044903
- Hartlaubella gelatinosa (Pallas, 1766) [a hydroid] 11 044033
- Hartlaubella spp. [a hydroid] 11 044908
- Obelia bidentata Clarke, 1875 [a hydroid] 11 044017
- Obelia dichotoma (Linnaeus, 1758) [a hydroid] 11 044012
- Obelia geniculata (Linnaeus, 1758) [a hydroid] 11 044013
- Obelia longissima (Pallas, 1766) [a hydroid] 11 044034
- Obelia spongicola Watson, 2011 [a hydroid] 11 044010
- Obelia spp. [a hydroid] 11 044904
- Orthopyxis affabilis Vervoort & Watson, 2003 [a hydroid] 11 044025
- Orthopyxis angulata Bale, 1914 [a hydroid] 11 044015
- Orthopyxis caliculata (Hincks, 1853) [a hydroid] 11 044003
- Orthopyxis crenata (Hartlaub, 1901) [a hydroid] 11 044004
- Orthopyxis crenataformis Watson, 2005 [a hydroid] 11 044016
- Orthopyxis frigida Stechow, 1923 [a hydroid] 11 044024
- Orthopyxis integra (MacGillivray, 1842) [a hydroid] 11 044019
- Orthopyxis mollis (Stechow, 1919) [a hydroid] 11 044026
- Orthopyxis spp. [a hydroid] 11 044905
- Silicularia rosea Meyen, 1834 [a hydroid] 11 044021
- Silicularia undulata (Mulder & Trebilcock, 1914) [a hydroid] 11 044002
- Silicularia spp. [a hydroid] 11 044906
- Campanulariidae - undifferentiated hydroids 11 044000
- Campanulina cliftonia Watson, 2011 [a hydroid] 11 043004
- Campanulina elata Watson, 2011 [a hydroid] 11 043005
- Campanulina spp. 11 043901
- Cuspidella costata Hincks, 1868 [a hydroid] 11 043003
- Cuspidella spp. 11 043902
- Lafoeina longitheca Jäderholm, 1904 [a hydroid] 11 043007
- Lafoeina spp. [a hydroid] 11 043903
- Opercularella spp. [a hydroid] 11 043904
- Plicatotheca anitae Calder & Vervoort, 1986 [a hydroid] 11 043009
- Plicatotheca spp. [a hydroid] 11 043908
- Stegella lobata (Vanhöffen, 1910) [a hydroid] 11 043008
- Stegella spp. [a hydroid] 11 043906
- Tripoma arboreum Hirohito, 1995 [a hydroid] 11 043002
- Tripoma spp. [a hydroid] 11 043905
- Campanulinidae - undifferentited hydroids 11 043911
- Candelabrum australe (Briggs, 1928) [a hydroid] 11 008001
- Candelabrum harrisoni (Briggs, 1928) [a hydroid] 11 008002
- Candelabrum spp. [a hydroid] 11 008901
- Monocoryne antarctica Peña Cantero, 2017 [a hydroid] 11 008003
- Monocoryne spp. [a hydroid] 11 008902
- Candelabridae - undifferentiated hydroids 11 008000
- Cladonema radiatum Dujardin, 1843 [a hydroid] 11 010002
- Cladonema timmsii Gershwin & Zeidler, 2008 [a hydromedusa] 11 010001
- Cladonema spp. [a hydroid] 11 010901
- Staurocladia vallentini Browne, 1902 [a hydroid] 11 010003
- Staurocladia wellingtoni Schuchert, 1996 [a hydroid] 11 010004
- Staurocladia spp. [a hydroid] 11 010902
- Cladonematidae - undifferentiated hydromedusae 11 010000
- Crystallophyes amygdalina Moser, 1925 [a siphonophore] 11 092001
- Crystallophyes spp. [a siphonophore] 11 092901
- Heteropyramis crystallina (Moser, 1925) [a siphonophore] 11 092002
- Heteropyramis maculata Moser, 1925 [a siphonophore] 11 092003
- Heteropyramis spp. [a siphonophore] 11 092902
- Clausophyidae - undifferentiated siphonophores 11 092000
- Corymorpha annulata (Kramp, 1928) [a hydromedusa] 11 013007
- Corymorpha bigelowi (Maas, 1905) [a hydromedusa] 11 013006
- Corymorpha forbesii (Mayer, 1894) [a hydroid] 11 013009
- Corymorpha furcata (Kramp, 1948) [a hydroid] 11 013010
- Corymorpha juliephillipsi (Gershwin, Zeidler & Davie, 2010) [a hydroid] 11 013002
- Corymorpha microrhiza (Hickson & Gravely, 1907) [a hydroid] 11 013008
- Corymorpha rubicincta Watson, 2008 [a hydroid] 11 013001
- Corymorpha spp. [a hydroid] 11 013901
- Euphysa aurata Forbes, 1848 [a hydroid] 11 013005
- Euphysa australis Lendenfeld, 1884 [a hydroid] 11 013004
- Euphysa intermedia (Schuchert, 1996) [a hydroid] 11 013011
- Euphysa problematica Schuchert, 1996 [a hydroid] 11 013012
- Euphysa scintillans Gershwin, Zeidler & Davie, 2010 [a hydroid] 11 013003
- Euphysa spp. [a hydroid] 11 013902
- Corymorphidae - undifferentiated hydroids 11 013000
- Coryne eximia Allman, 1859 [a hydroid] 11 014001
- Coryne japonica (Nagao, 1962) [a hydroid] 11 014002
- Coryne pusilla Gaertner, 1774 [a hydroid] 11 014003
- Coryne tricycla Schuchert, 1996 [a hydroid] 11 014004
- Coryne spp. [a hydroid] 11 014901
- Stauridiosarsia ophiogaster (Haeckel, 1879) [a hydroid] 11 014005
- Stauridiosarsia spp. [a hydroid] 11 014902
- Corynidae - undifferentiated hydroids 11 014000
- Cunina duplicata Maas, 1893 [a hydromedusa] 11 082001
- Cunina frugifera Kramp, 1948 [a hydromedusa] 11 082004
- Cunina globosa Eschscholtz, 1829 [a hydromedusa] 11 082005
- Cunina octonaria McCrady, 1859 [a hydromedusa] 11 082002
- Cunina peregrina Bigelow, 1909 [a hydromedusa] 11 082006
- Cunina spp. [a hydromedusa] 11 082901
- Solmissus incisa (Fewkes, 1886) [a hydromedusa] 11 082007
- Solmissus marshalli A. Agassiz & Mayer, 1902 [a hydromedusa] 11 082003
- Solmissus spp. [a hydromedusa] 11 082902
- Cuninidae - undifferentiated hydromedusae 11 082000
- Chelophyes appendiculata (Eschscholtz, 1829) [a siphonophore] 11 093001
- Chelophyes contorta (Lens & van Reimsdijk, 1908) [a siphonophore] 11 093002
- Chelophyes spp. [a siphonophore] 11 093902
- Dimophyes arctica (Chun, 1897) [a siphonophore] 11 093003
- Dimophyes spp. [a siphonophore] 11 093904
- Diphyes antarctica Moser, 1925 [a siphonophore] 11 093013
- Diphyes bojani (Eschscholtz, 1825) [a siphonophore] 11 093014
- Diphyes chamissonis Huxley, 1859 [a siphonophore] 11 093004
- Diphyes dispar Chamisso & Eysenhardt, 1821 [a siphonophore] 11 093005
- Diphyes spp. [a siphonophore] 11 093903
- Eudoxoides mitra (Huxley, 1859) [a siphonophore] 11 093006
- Eudoxoides spiralis (Bigelow, 1911) [a siphonophore] 11 093007
- Eudoxoides spp. [a siphonophore] 11 093905
- Gilia reticulata (Totton, 1954) [a siphonophore] 11 093015
- Gilia spp. [a siphonophore] 11 093908
- Lensia achilles Totton, 1941 [a siphonophore] 11 093016
- Lensia campanella (Moser, 1917) [a siphonophore] 11 093017
- Lensia conoidea (Keferstein & Ehlers, 1941) [a siphonophore] 11 093018
- Lensia fowleri (Bigelow, 1911) [a siphonophore] 11 093019
- Lensia grimaldi (Leloup, 1933) [a siphonophore] 11 093020
- Lensia hardy Totton, 1941 [a siphonophore] 11 093021
- Lensia havock Totton, 1941 [a siphonophore] 11 093011
- Lensia hostile Totton, 1941 [a siphonophore] 11 093022
- Lensia hunter Totton, 1941 [a siphonophore] 11 093023
- Lensia leloupi Totton, 1954 [a siphonophore] 11 093012
- Lensia lelouveteau Totton, 1941 [a siphonophore] 11 093024
- Lensia meteori (Leloup, 1934) [a siphonophore] 11 093025
- Lensia multicristata (Moser, 1925) [a siphonophore] 11 093026
- Lensia subtilis (Chun, 1886) [a siphonophore] 11 093008
- Lensia subtiloides (Lens & van Reimsdijk, 1908) [a siphonophore] 11 093009
- Lensia spp. [a siphonophore] 11 093901
- Muggiaea spp. [a siphonophore] 11 093906
- Sulculeolaria chuni (Lens & van Riemsdijk, 1908) [a siphonophore] 11 093028
- Sulculeolaria monoica (Chun, 1888) [a siphonophore] 11 093027
- Sulculeolaria quadrivalvis Blainville, 1834 [a siphonophore] 11 093010
- Sulculeolaria turgida (Gegenbaur, 1854) [a siphonophore] 11 093029
- Sulculeolaria spp. [a siphonophore] 11 093907
- Diphyidae - undifferentiated siphonophores 11 093000
- Eirene ceylonensis Browne, 1905 [a hydroid] 11 047001
- Eirene hexanemalis (Goette, 1886) [a hydroid] 11 047002
- Eirene kambara Agassiz & Mayer, 1899 [a hydromedusa] 11 047008
- Eirene menoni Kramp, 1953 [a hydroid] 11 047003
- Eirene palkensis Browne, 1905 [a hydromedusa] 11 047007
- Eirene proboscidea Bouillon & Barnett, 1999 [a hydroid] 11 047009
- Eirene tenuis (Browne, 1904) [a hydroid] 11 047010
- Eirene spp. [a hydroid] 11 047901
- Eutima australis Mayer, 1915 [a hydroid] 11 047004
- Eutima curva Browne, 1905 [a hydromedusa] 11 047006
- Eutima levuka (Agassiz & Mayer, 1899) [a hydromedusa] 11 047005
- Eutima mira McCrady, 1859 [a hydroid] 11 047011
- Eutima spp. [a hydroid] 11 047902
- Phialopsis diegensis Torrey, 1909 [a hydroid] 11 047012
- Phialopsis spp. [a hydroid] 11 047903
- Eirenidae - undifferentiated hydroids 11 047000
- Eudendrium aylingae Watson, 1985 [a hydroid] 11 017016
- Eudendrium balei Watson, 1985 [a hydroid] 11 017011
- Eudendrium bentart Peña Cantero, 2013 [a hydroid] 11 017012
- Eudendrium capillare Alder, 1856 [a hydroid] 11 017017
- Eudendrium carneum Clarke, 1882 [a hydroid] 11 017018
- Eudendrium corrugatum Watson, 1985 [a hydroid] 11 017019
- Eudendrium currumbense Watson, 1985 [a hydroid] 11 017002
- Eudendrium cyathiferum Jäderholm, 1904 [a hydroid] 11 017005
- Eudendrium deforme Hartlaub, 1905 [a hydroid] 11 017006
- Eudendrium generale Lendenfeld, 1885 [a hydroid] 11 017013
- Eudendrium glomeratum Picard, 1951 [a hydroid] 11 017001
- Eudendrium infundibuliforme Kirkpatrick, 1890 [a hydroid] 11 017004
- Eudendrium kirkpatricki Watson, 1985 [a hydroid] 11 017003
- Eudendrium macquariensis Watson, 2003 [a hydroid] 11 017007
- Eudendrium maorianus Schuchert, 1996 [a hydroid] 11 017020
- Eudendrium merulum Watson, 1985 [a hydroid] 11 017021
- Eudendrium minutum Watson, 1985 [a hydroid] 11 017022
- Eudendrium nambuccense Watson, 1985 [a hydroid] 11 017023
- Eudendrium novaezelandiae Marktanner-Turneretscher, 1890 [a hydroid] 11 017024
- Eudendrium pennycuikae Watson, 1985 [a hydroid] 11 017008
- Eudendrium racemosum (Cavolini, 1785) [a hydroid] 11 017009
- Eudendrium ritchiei Millard, 1975 [a hydroid] 11 017010
- Eudendrium scotti Puce, Cerrano & Bavestrello, 2002 [a hydroid] 11 017014
- Eudendrium terranovae Watson, 1985 [a hydroid] 11 017025
- Eudendrium tottoni Stechow, 1932 [a hydroid] 11 017015
- Eudendrium spp. [a hydroid] 11 017901
- Eudendriidae - undifferentiated hydroids 11 017000
- Halecium amphibolum Watson, 1993 [a hydroid] 11 050031
- Halecium antarcticum Vanhöffen, 1910 [a hydroid] 11 050014
- Halecium banzare Watson, 2008 [a hydroid] 11 050015
- Halecium beanii (Johnston, 1838) [a hydroid] 11 050035
- Halecium bithecum Watson, 2005 [a hydroid] 11 050021
- Halecium corpulatum Watson, 2012 [a hydroid] 11 050026
- Halecium corrugatissimum Trebilcock, 1928 [a hydroid] 11 050036
- Halecium delicatulum Coughtrey, 1876 [a hydroid] 11 050007
- Halecium dyssymetrum Billard, 1929 [a hydroid] 11 050008
- Halecium elegantulum Watson, 2008 [a hydroid] 11 050017
- Halecium exaggeratum Peña Cantero, Boero & Piraino, 2013 [a hydroid] 11 050027
- Halecium expansum Trebilcock, 1928 [a hydroid] 11 050037
- Halecium fragile Hodgson, 1950 [a hydroid] 11 050013
- Halecium incertus Naumov & Stepanjants, 1962 [a hydroid] 11 050028
- Halecium interpolatum Ritchie, 1907 [a hydroid] 11 050018
- Halecium jaederholmi Vervoort, 1972 [a hydroid] 11 050033
- Halecium lenticulare Trebilcock, 1928 [a hydroid] 11 050032
- Halecium macrocaulus Watson, 2008 [a hydroid] 11 050019
- Halecium obovatum Watson, 2018 [a hydroid] 11 050039
- Halecium ovatum Totton, 1930 [a hydroid] 11 050012
- Halecium pearsonense Watson, 1997 [a hydroid] 11 050022
- Halecium plicatocarpum Vervoort & Watson, 2003 [a hydroid] 11 050038
- Halecium pseudoincertus Peña Cantero, 2014 [a hydroid] 11 050029
- Halecium ralphae Watson & Vervoort, 2001 [a hydroid] 11 050010
- Halecium secundum Jäderholm, 1904 [a hydroid] 11 050030
- Halecium sessile Norman, 1867 [a hydroid] 11 050001
- Halecium spatulum Watson, 2000 [a hydroid] 11 050009
- Halecium tabulatum Watson, 2005 [a hydroid] 11 050023
- Halecium tangaroa Peña Cantero, 2017 [a hydroid] 11 050034
- Halecium tenellum Hincks, 1861 [a hydroid] 11 050011
- Halecium tubatum Watson, 2008 [a hydroid] 11 050020
- Halecium spp. [a hydroid] 11 050901
- Hydrodendron arboreum (Allman, 1888) [a hydroid] 11 050006
- Hydrodendron armatum (Stechow, 1925) [a hydroid] 11 050003
- Hydrodendron australe (Bale, 1919) [a hydroid] 11 050004
- Hydrodendron daidalum (Watson, 1969) [a hydroid] 11 050002
- Hydrodendron dichotomum (Allman, 1888) [a hydroid] 11 050005
- Hydrodendron mirabile (Hincks, 1866) [a hydroid] 11 050025
- Hydrodendron tottoni Rees & Vervoort, 1987 [a hydroid] 11 050040
- Hydrodendron spp. [a hydroid] 11 050902
- Nemalecium lighti (Hargitt, 1924) [a hydroid] 11 050024
- Nemalecium spp. 11 050903
- Haleciidae - undifferentiated hydroids 11 050000
- Botrynema brucei Browne, 1908 [a hydromedusa] 11 086001
- Botrynema spp. [a hydromedusa] 11 086901
- Halicreas minimum Fewkes, 1882 [a hydromedusa] 11 086002
- Halicreas spp. [a hydromedusa] 11 086902
- Haliscera bigelowi Kramp, 1947 [a hydromedusa] 11 086005
- Haliscera conica Vanhöffen, 1902 [a hydromedusa] 11 086003
- Haliscera racovitzae (Maas, 1906) [a hydromedusa] 11 086006
- Haliscera spp. [a hydromedusa] 11 086903
- Halitrephes maasi Bigelow, 1909 [a hydromedusa] 11 086004
- Halitrephes spp. [a hydromedusa] 11 086904
- Halicreatidae - undifferentiated hydromedusae 11 086000
- Antennella campanuliformis (Mulder & Trebilcock, 1909) [a hydroid] 11 063003
- Antennella kiwiana Schuchert, 1997 [a hydroid] 11 063013
- Antennella quadriaurita Ritchie, 1909 [a hydroid] 11 063014
- Antennella secundaria (Gmelin, 1791) [a hydroid] 11 063002
- Antennella singulata Watson, 2011 [a hydroid] 11 063009
- Antennella tubulosa (Bale, 1894) [a hydroid] 11 063010
- Antennella spp. [a hydroid] 11 063901
- Antennellopsis integerrima Jäderholm, 1896 [a hydroid] 11 063015
- Antennellopsis spp. [a hydroid] 11 063906
- Corhiza scotiae (Ritchie, 1907) [a hydroid] 11 063016
- Corhiza splendens Vervoort & Watson, 2003 [a hydroid] 11 063017
- Corhiza spp. [a hydroid] 11 063907
- Gattya balei (Bartlett, 1907) [a hydroid] 11 063004
- Gattya spp. 11 063902
- Halopteris campanula (Busk, 1852) [a hydroid] 11 063001
- Halopteris crassa (Billard, 1911) [a hydroid] 11 063018
- Halopteris glutinosa (Lamouroux, 1816) [a hydroid] 11 063008
- Halopteris infundibulum Vervoort, 1966 [a hydroid] 11 063019
- Halopteris minuta (Trebilcock, 1928) [a hydroid] 11 063020
- Halopteris plagiocampa (Pictet, 1893) [a hydroid] 11 063006
- Halopteris polymorpha (Billard, 1913) [a hydroid] 11 063005
- Halopteris prominens Vervoort & Watson, 2003 [a hydroid] 11 063021
- Halopteris pseudoconstricta Millard, 1975 [a hydroid] 11 063022
- Halopteris urceolata Watson, 2015 [a hydroid] 11 063012
- Halopteris spp. [a hydroid] 11 063903
- Monostaechas quadridens (McCrady, 1859) [a hydroid] 11 063011
- Monostaechas spp. [a hydroid] 11 063904
- Halopterididae - undifferentiated hydroids 11 063000
- Anthohebella darwinensis Watson, 2000 [a hydroid] 11 068002
- Anthohebella parasitica (Ciamician, 1880) [a hydroid] 11 068003
- Anthohebella spp. [a hydroid] 11 068901
- Halisiphonia prolifica Peña Cantero, 2014 [a hydroid] 11 068013
- Halisiphonia spp. [a hydroid] 11 068905
- Hebella albida Watson, 2011 [a hydroid] 11 068001
- Hebella contorta Marktanner-Turneretscher, 1890 [a hydroid] 11 068007
- Hebella costata (Bale, 1884) [a hydroid] 11 068004
- Hebella dyssymetra Billard, 1931 [a hydroid] 11 068006
- Hebella plana Ritchie, 1907 [a hydroid] 11 068008
- Hebella scandens (Bale, 1888) [a hydroid] 11 068005
- Hebella striata Allman, 1888 [a hydroid] 11 068009
- Hebella spp. [a hydroid] 11 068902
- Staurodiscus gotoi (Uchida, 1927) [a hydroid] 11 068010
- Staurodiscus polynema (Kramp, 1959) [a hydroid] 11 068011
- Staurodiscus spp. [a hydroid] 11 068904
- Hebellidae - undifferentiated hydroids 11 068000
- Hippopodius hippopus (Forsskål, 1776) [a siphonophore] 11 094001
- Hippopodius spp. [a siphonophore] 11 094901
- Vogtia glabra Bigelow, 1918 [a siphonophore] 11 094004
- Vogtia pentacantha Kölliker, 1853 [a siphonophore] 11 094002
- Vogtia serrata (Moser, 1925) [a siphonophore] 11 094005
- Vogtia spinosa Keferstein & Ehlers, 1860 [a siphonophore] 11 094003
- Vogtia spp. [a siphonophore] 11 094902
- Hippopodiidae - undifferentiated siphonophores 11 094000
- Clavactinia rubricata (Schuchert, 1996) [a hydroid] 11 019011
- Clavactinia spp. [a hydroid] 11 019904
- Fiordlandia protecta Schuchert, 1996 [a hydroid] 11 019005
- Fiordlandia spp. [a hydroid] 11 019902
- Hydractinia angusta Hartlaub, 1904 [a hydroid] 11 019002
- Hydractinia dendritica Hickson & Gravely, 1907 [a hydroid] 11 019003
- Hydractinia gelinea Watson, 2015 [a hydroid] 11 019001
- Hydractinia novaezelandiae Schuchert, 1996 [a hydroid] 11 019008
- Hydractinia otagoensis (Schuchert, 1996) [a hydroid] 11 019009
- Hydractinia parvispina Hartlaub, 1905 [a hydroid] 11 019010
- Hydractinia vallini Jäderholm, 1926 [a hydroid] 11 019004
- Hydractinia spp. [a hydroid] 11 019901
- Podocoryna australis Schuchert, 1996 [a hydroid] 11 019006
- Podocoryna bella Hand, 1961 [a hydroid] 11 019007
- Podocoryna spp. [a hydroid] 11 019903
- Hydractiniidae - undifferentiated hydroids 11 019000
- Halicornopsis elegans (Lamarck, 1816) [a hydroid] 11 065003
- Halicornopsis spp. [a hydroid] 11 065901
- Kirchenpaueria bonnevieae (Billard, 1906) [a hydroid] 11 065018
- Kirchenpaueria spp. [a hydroid] 11 065905
- Oswaldella bifurca (Hartlaub, 1904) [a hydroid] 11 065006
- Oswaldella billardi Briggs, 1938 [a hydroid] 11 065007
- Oswaldella blanconae Peña Cantero, 2017 [a hydroid] 11 065008
- Oswaldella erratum Peña Cantero & Vervoort, 1997 [a hydroid] 11 065019
- Oswaldella frigida Peña Cantero & Vervoort, 2004 [a hydroid] 11 065009
- Oswaldella garciacarrascosai Peña Cantero, Svoboda & Vervoort, 1997 [a hydroid] 11 065010
- Oswaldella incognita Peña Cantero, Svoboda & Vervoort, 1997 [a hydroid] 11 065011
- Oswaldella laertesi Peña Cantero, 2007 [a hydroid] 11 065012
- Oswaldella medeae Peña Cantero & Vervoort, 2004 [a hydroid] 11 065013
- Oswaldella occulta Peña Cantero & Molinero, 2018 [a hydroid] 11 065020
- Oswaldella rigida Peña Cantero, Svoboda & Vervoort, 1997 [a hydroid] 11 065014
- Oswaldella terranovae Peña Cantero & Vervoort, 1996 [a hydroid] 11 065016
- Oswaldella tottoni Peña Cantero & Vervoort, 1996 [a hydroid] 11 065017
- Oswaldella spp. [a hydroid] 11 065904
- Pycnotheca mirabilis (Allman, 1883) [a hydroid] 11 065004
- Pycnotheca producta (Bale, 1882) [a hydroid] 11 065001
- Pycnotheca spp. [a hydroid] 11 065902
- Ventromma bellarensis Watson, 2011 [a hydroid] 11 065005
- Ventromma irregularis (Millard, 1958) [a hydroid] 11 065002
- Ventromma spp. 11 065903
- Kirchenpaueriidae - undifferentiated hydroids 11 065000
- Acryptolaria angulata (Bale, 1914) [a hydroid] 11 051026
- Acryptolaria conferta (Allman, 1877) [a hydroid] 11 051012
- Acryptolaria corniformis Naumov & Stepanjants, 1962 [a hydroid] 11 051027
- Acryptolaria crassicaulis (Allman, 1888) [a hydroid] 11 051028
- Acryptolaria frigida Peña Cantero, 2014 [a hydroid] 11 051045
- Acryptolaria gracilis (Allman, 1888) [a hydroid] 11 051015
- Acryptolaria longitheca (Allman, 1877) [a hydroid] 11 051046
- Acryptolaria minima Totton, 1930 [a hydroid] 11 051029
- Acryptolaria minuta Watson, 2003 [a hydroid] 11 051014
- Acryptolaria operculata Stepanjants, 1979 [a hydroid] 11 051013
- Acryptolaria spp. [a hydroid] 11 051902
- Billardia hyalina Vervoort & Watson, 2003 [a hydroid] 11 051023
- Billardia novaezealandiae Totton, 2003 [a hydroid] 11 051024
- Billardia subrufa (Jäderholm, 1904) [a hydroid] 11 051022
- Billardia spp. [a hydroid] 11 051905
- Cryptolarella abyssicola (Allman, 1888) [a hydroid] 11 051044
- Cryptolarella spp. [a hydroid] 11 051908
- Filellum annulatum (Watson, 1973) [a hydroid] 11 051019
- Filellum antarcticum (Hartlaub, 1904) [a hydroid] 11 051002
- Filellum conopeum Watson, 2003 [a hydroid] 11 051004
- Filellum magnificum Peña Cantero, Svoboda & Vervoort, 2004 [a hydroid] 11 051020
- Filellum nitidum Watson, 2005 [a hydroid] 11 051017
- Filellum serpens (Hassall, 1848) [a hydroid] 11 051034
- Filellum serratum (Clarke, 1879) [a hydroid] 11 051003
- Filellum spp. [a hydroid] 11 051901
- Lafoea annulata Watson, 2003 [a hydroid] 11 051010
- Lafoea dumosa (Fleming, 1820) [a hydroid] 11 051009
- Lafoea gaussica Vanhöffen, 1910 [a hydroid] 11 051021
- Lafoea tenellula Allman, 1877 [a hydroid] 11 051008
- Lafoea spp. [a hydroid] 11 051903
- Lafoeidae - undifferentiated hydroids 11 051911
- Laodicea fijiana Agassiz & Mayer, 1899 [a hydromedusa] 11 052002
- Laodicea indica Browne, 1905 [a hydromedusa] 11 052003
- Laodicea spp. [a hydromedusa] 11 052902
- Melicertissa antrichardsoni Uribe-Palomino & Gershwin in Uribe-Palomino, Pausina & Gershwin, 2018 [a hydromedusa] 11 052005
- Melicertissa orientalis Kramp, 1961 [a hydromedusa] 11 052006
- Melicertissa spp. [a hydromedusa] 11 052903
- Staurophora falklandica Browne, 1907 [a hydroid] 11 052001
- Staurophora spp. 11 052901
- Laodiceidae - undifferentiated hydroids 11 052000
- Eucheilota menoni Kramp, 1959 [a hydromedusa] 11 053003
- Eucheilota paradoxica Mayer, 1900 [a hydromedusa] 11 053004
- Eucheilota tropica Kramp, 1959 [a hydromedusa] 11 053005
- Eucheilota spp. [a hydromedusa] 11 053903
- Hydranthea margarica (Hincks, 1862) [a hydroid] 11 053001
- Hydranthea spp. 11 053901
- Lovenella assimilis (Browne, 1905) [a hydromedusa] 11 053006
- Lovenella spp. [a hydromedusa] 11 053904
- Mitrocomium alcoicum (Watson, 1993) [a hydroid] 11 053002
- Mitrocomium spp. [a hydroid] 11 053902
- Paralovenia yongalensis Gershwin & Uribe-Palomino in Uribe-Palomino, Pausina & Gershwin, 2018 [a hydromedusa] 11 053007
- Paralovenia spp. [a hydromedusa] 11 053905
- Lovenellidae - undifferentiated hydroids 11 053000
- Cosmetirella davisi (Browne, 1902) [a hydroid] 11 055001
- Cosmetirella spp. [a hydromedusa] 11 055901
- Mitrocomella brownei (Kramp, 1930) [a hydroid] 11 055002
- Mitrocomella frigida (Browne, 1910) [a hydroid] 11 055003
- Mitrocomella niwai Bouillon & Barnett, 1999 [a hydroid] 11 055004
- Mitrocomella spp. [a hydromedusa] 11 055902
- Mitrocomidae - undifferentiated hydroids 11 055000
- Cordylophora caspia (Pallas, 1771) [a hydroid] 11 011005
- Cordylophora spp. [a hydroid] 11 011901
- Corydendrium parasiticum (Linnaeus, 1767) [a hydroid] 11 011003
- Corydendrium spp. 11 011902
- Oceania armata Kölliker, 1853 [a hydroid] 11 011006
- Oceania spp. [a hydroid] 11 011905
- Rhizogeton conicum Schuchert, 1996 [a hydroid] 11 011007
- Rhizogeton spp. [a hydroid] 11 011906
- Turritopsis lata Lendenfeld, 1884 [a hydroid] 11 011004
- Turritopsis rubra (Farquhar, 1895) [a hydroid] 11 011001
- Turritopsis spp. [a hydroid] 11 011904
- Oceaniidae - undifferentiated hydroids 11 011000
- Aglauropsis spp. [a hydromedusa] 11 073903
- Craspedacusta sowerbii Lankester, 1880 [a hydromedusa] 11 073005
- Craspedacusta spp. [a hydromedusa] 11 073904
- Gonionemus agilis Watson & Govindarajan, 2017 [a hydromedusa] 11 073006
- Gonionemus hamatus Kramp, 1965 [a hydromedusa] 11 073007
- Gonionemus spp. [a hydromedusa] 11 073905
- Hexaphilia scoresbyi Gershwin & Zeidler, 2003 [a hydromedusa] 11 073003
- Hexaphilia spp. 11 073901
- Olindias phosphorica (Delle Chiaje, 1841) [a hydromedusa] 11 073001
- Olindias singularis Browne, 1904 [a hydromedusa] 11 073002
- Olindias spp. 11 073902
- Olindiidae - undifferentiated hydromedusae 11 073000
- Amphinema cheshirei Gershwin & Zeidler, 2003 [a hydroid] 11 024001
- Amphinema dinema Peron & Lesueur, 1810 [a hydromedusa] 11 024003
- Amphinema rugosum (Mayer, 1900) [a hydroid] 11 024006
- Amphinema turrida Mayer, 1900 [a hydromedusa] 11 024004
- Amphinema spp. [a hydroid] 11 024903
- Annatiara affinis (Hartlaub, 1913) [a hydroid] 11 024007
- Annatiara spp. [a hydroid] 11 024905
- Barnettia caprai Schuchert, 1996 [a hydroid] 11 024008
- Barnettia spp. [a hydroid] 11 024906
- Halitholus pauper Hartlaub, 1914 [a hydroid] 11 024009
- Halitholus spp. [a hydroid] 11 024907
- Leuckartiara annexa Kramp, 1957 [a hydroid] 11 024010
- Leuckartiara gardineri Browne, 1916 [a hydromedusa] 11 024005
- Leuckartiara octona (Fleming, 1823) [a hydroid] 11 024002
- Leuckartiara spp. [a hydroid] 11 024904
- Merga treubeli Schuchert, 1996 [a hydroid] 11 024011
- Merga spp. [a hydroid] 11 024908
- Neoturris papua (Lesson, 1843) [a hydroid] 11 024012
- Neoturris spp. [a hydroid] 11 024901
- Pandea conica (Quoy & Gaimard, 1827) [a hydroid] 11 024013
- Pandea spp. [a hydroid] 11 024902
- Pandeopsis ikarii (Uchida, 1927) [a hydroid] 11 024014
- Pandeopsis spp. [a hydroid] 11 024909
- Pandeidae - undifferentiated hydroids 11 024000
- Cladacanthella scabra (Lamarck, 1816) [a hydroid] 11 058007
- Cladacanthella spp. [a hydroid] 11 058906
- Dentitheca asymmetrica (Bale, 1914) [a hydroid] 11 058021
- Dentitheca spp. 11 058901
- Monotheca amphibola Watson, 2011 [a hydroid] 11 058025
- Monotheca australis (Kirchenpauer, 1876) [a hydroid] 11 058013
- Monotheca epibracteolosa Watson, 1973 [a hydroid] 11 058038
- Monotheca flexuosa (Bale, 1894) [a hydroid] 11 058014
- Monotheca hyalina (Bale, 1882) [a hydroid] 11 058026
- Monotheca obliqua (Johnston, 1847) [a hydroid] 11 058015
- Monotheca pulchella (Bale, 1882) [a hydroid] 11 058027
- Monotheca spinulosa (Bale, 1882) [a hydroid] 11 058016
- Monotheca togata (Watson, 1973) [a hydroid] 11 058028
- Monotheca spp. [a hydroid] 11 058902
- Nemertesia ciliata Bale, 1914 [a hydroid] 11 058039
- Nemertesia cylindrica (Kirchenpauer, 1876) [a hydroid] 11 058017
- Nemertesia cymodocea (Busk, 1851) [a hydroid] 11 058040
- Nemertesia elongata Totton, 1930 [a hydroid] 11 058041
- Nemertesia pinnatifida Vervoort & Watson, 2003 [a hydroid] 11 058042
- Nemertesia procumbens (Spencer, 1891) [a hydroid] 11 058004
- Nemertesia setaceaformis (Mulder & Trebilcock, 1915) [a hydroid] 11 058043
- Nemertesia spp. [a hydroid] 11 058903
- Plumularia anonyma Vervoort & Watson, 2003 [a hydroid] 11 058044
- Plumularia australiensis Watson, 1973 [a hydroid] 11 058019
- Plumularia badia Kirchenpauer, 1876 [a hydroid] 11 058006
- Plumularia billardi Ansín Agís, Ramil & Calder, 2016 [a hydroid] 11 058036
- Plumularia caliculata Bale, 1888 [a hydroid] 11 058045
- Plumularia congregata Vervoort & Watson, 2003 [a hydroid] 11 058046
- Plumularia conjuncta Billard, 1913 [a hydroid] 11 058037
- Plumularia crateriformis Mulder & Trebilcock, 1911 [a hydroid] 11 058022
- Plumularia filicaulis Kirchenpauer, 1876 [a hydroid] 11 058005
- Plumularia filicula Allman, 1877 [a hydroid] 11 058047
- Plumularia flabellum Allman, 1883 [a hydroid] 11 058035
- Plumularia fragilia Watson, 2012 [a hydroid] 11 058030
- Plumularia habereri Strechow, 1909 [a hydroid] 11 058033
- Plumularia insignis Allman, 1983 [a hydroid] 11 058011
- Plumularia meretricia Watson, 1973 [a hydroid] 11 058020
- Plumularia mula Totton, 1936 [a hydroid] 11 058048
- Plumularia opima Bale, 1924 [a hydroid] 11 058049
- Plumularia rotunda Mulder & Trebilcock, 1911 [a hydroid] 11 058031
- Plumularia setacea (Linnaeus, 1758) [a hydroid] 11 058008
- Plumularia setaceoides Bale, 1882 [a hydroid] 11 058023
- Plumularia spirocladia Totton, 1930 [a hydroid] 11 058050
- Plumularia sulcata (Lamarck, 1816) [a hydroid] 11 058024
- Plumularia tenuissima Totton, 1930 [a hydroid] 11 058051
- Plumularia tubacarpa Watson, 2000 [a hydroid] 11 058010
- Plumularia warreni Stechow, 1919 [a hydroid] 11 058029
- Plumularia wattsii Bale, 1887 [a hydroid] 11 058052
- Plumularia spp. [a hydroid] 11 058904
- Polyplumaria bedoti (Billard, 1911) [a hydroid] 11 058009
- Polyplumaria cornuta (Bale, 1884) [a hydroid] 11 058018
- Polyplumaria spp. 11 058905
- Schizoplumularia elegans Ansín Agís, Ramil & Calder, 2016 [a hydroid] 11 058034
- Schizoplumularia spp. [a hydroid] 11 058907
- Plumulariidae - undifferentiated hydroids 11 058000
- Amphicaryon acaule Chun, 1888 [a siphonophore] 11 095003
- Amphicaryon spp. [a siphonophore] 11 095903
- Nectopyramis natans (Bigelow, 1911) [a siphonophore] 11 095004
- Nectopyramis spp. [a siphonophore] 11 095904
- Praya dubia (Quoy & Gaimard, 1834) [a siphonophore] 11 095005
- Praya reticulata (Bigelow, 1911) [a siphonophore] 11 095001
- Praya spp. [a siphonophore] 11 095901
- Rosacea cymbiformis (Delle Chiaje, 1822) [a siphonophore] 11 095006
- Rosacea plicata Bigelow, 1911 [a siphonophore] 11 095002
- Rosacea spp. [a siphonophore] 11 095902
- Prayidae - undifferentiated siphonophores 11 095000
- Podocorynoides minima (Trinci, 1903) [a hydroid] 11 028001
- Podocorynoides spp. [a hydroid] 11 028901
- Rathkea formosissima (Browne, 1902) [a hydroid] 11 028003
- Rathkea lizzioides O'Sullivan, 1984 [a hydroid] 11 028002
- Rathkea octopunctata (M. Sars, 1835) [a hydroid] 11 028004
- Rathkea spp. [a hydroid] 11 028902
- Rathkeidae - undifferentiated hydroids 11 028000
- Aglantha elongata (Lesson, 1843) [a hydromedusa] 11 089002
- Aglantha spp. [a hydromedusa] 11 089902
- Aglaura hemistoma Péron & Lesueur, 1810 [a hydromedusa] 11 089001
- Aglaura spp. [a hydromedusa] 11 089901
- Amphogona apicata Kramp, 1947 [a hydromedusa] 11 089009
- Amphogona spp. [a hydromedusa] 11 089908
- Colobonema sericeum Vanhöffen, 1902 [a hydromedusa] 11 089003
- Colobonema spp. [a hydromedusa] 11 089903
- Crossota alba Bigelow, 1913 [a hydromedusa] 11 089010
- Crossota brunnea Vanhöffen, 1902 [a hydromedusa] 11 089011
- Crossota spp. [a hydromedusa] 11 089909
- Pantachogon haeckelii Maas, 1893 [a hydromedusa] 11 089004
- Pantachogon spp. [a hydromedusa] 11 089904
- Persa incolorata McCrady, 1859 [a hydromedusa] 11 089005
- Persa spp. [a hydromedusa] 11 089905
- Rhopalonema funerarium Vanhöffen, 1902 [a hydromedusa] 11 089006
- Rhopalonema velatum Gegenbaur, 1856 [a hydromedusa] 11 089007
- Rhopalonema spp. [a hydromedusa] 11 089906
- Sminthea eurygaster Gegenbaur, 1857 [a hydromedusa] 11 089008
- Sminthea spp. [a hydromedusa] 11 089907
- Tetrorchis erythrogaster Bigelow, 1909 [a hydromedusa] 11 089012
- Tetrorchis spp. [a hydromedusa] 11 089910
- Rhopalonematidae - undifferentiated hydromedusae 11 089000
- Schizotricha auroraaustralis Peña Cantero & Fresneda Marzal, 2018 [a hydroid] 11 062005
- Schizotricha falcata Peña Cantero, 1998 [a hydroid] 11 062002
- Schizotricha glacialis (Hickson & Gravely, 1907) [a hydroid] 11 062006
- Schizotricha nana Peña Cantero, Svoboda & Vervoort, 1996 [a hydroid] 11 062003
- Schizotricha turqueti Billard, 1906 [a hydroid] 11 062004
- Schizotricha unifurcata Allman, 1983 [a hydroid] 11 062001
- Schizotricha spp. [a hydroid] 11 062901
- Schizotrichidae - undifferentiated hydroids 11 062000
- Amphisbetia bicuspidata (Lamarck, 1816) [a hydroid] 11 059050
- Amphisbetia bispinosa (Gray, 1843) [a hydroid] 11 059117
- Amphisbetia episcopus (Allman, 1876) [a hydroid] 11 059118
- Amphisbetia fasciculata (Kirchenpauer, 1864) [a hydroid] 11 059119
- Amphisbetia macrocarpa (Bale, 1884) [a hydroid] 11 059047
- Amphisbetia maplestonei (Bale, 1884) [a hydroid] 11 059021
- Amphisbetia minima (Thompson, 1879) [a hydroid] 11 059020
- Amphisbetia olseni Watson, 1973 [a hydroid] 11 059022
- Amphisbetia operculata (Linnaeus, 1758) [a hydroid] 11 059120
- Amphisbetia pulchella (Thompson, 1879) [a hydroid] 11 059051
- Amphisbetia trispinosa (Coughtrey, 1875) [a hydroid] 11 059121
- Amphisbetia spp. [a hydroid] 11 059901
- Crateritheca bidens Vervoort & Watson, 2003 [a hydroid] 11 059122
- Crateritheca billardi (Bale, 1915) [a hydroid] 11 059123
- Crateritheca insignis (Thompson, 1879) [a hydroid] 11 059124
- Crateritheca novaezelandiae (Thompson, 1879) [a hydroid] 11 059125
- Crateritheca zelandica (Gray, 1843) [a hydroid] 11 059126
- Crateritheca spp. [a hydroid] 11 059918
- Dictyocladium amplexum Vervoort & Watson, 2003 [a hydroid] 11 059127
- Dictyocladium monilifer (Hutton, 1873) [a hydroid] 11 059128
- Dictyocladium reticulatum (Kirchenpauer, 1884) [a hydroid] 11 059129
- Dictyocladium thuja Vervoort & Watson, 2003 [a hydroid] 11 059130
- Dictyocladium watsonae (Vervoort, 1993) [a hydroid] 11 059131
- Dictyocladium spp. [a hydroid] 11 059919
- Diphasia digitalis (Busk, 1852) [a hydroid] 11 059024
- Diphasia mutulata (Busk, 1852) [a hydroid] 11 059023
- Diphasia subcarinata (Busk, 1852) [a hydroid] 11 059067
- Diphasia spp. [a hydroid] 11 059903
- Dynamena bilamellata Watson, 2000 [a hydroid] 11 059025
- Dynamena crisioides Lamouroux, 1824 [a hydroid] 11 059060
- Dynamena disticha (Bosc, 1802) [a hydroid] 11 059061
- Dynamena mertoni (Stechow & Müller, 1923) [a hydroid] 11 059026
- Dynamena obliqua Lamouroux, 1816 [a hydroid] 11 059062
- Dynamena quadridentata (Ellis & Solander, 1786) [a hydroid] 11 059003
- Dynamena spinea Watson, 2005 [a hydroid] 11 059052
- Dynamena spp. [a hydroid] 11 059904
- Gigantotheca maxima Vervoort & Watson, 2003 [a hydroid] 11 059132
- Gigantotheca raukumarai Vervoort & Watson, 2003 [a hydroid] 11 059133
- Gigantotheca spp. [a hydroid] 11 059920
- Gonaxia australis Vervoort & Watson, 2003 [a hydroid] 11 059134
- Gonaxia constricta (Totton, 1930) [a hydroid] 11 059135
- Gonaxia grandis Vervoort & Watson, 2003 [a hydroid] 11 059136
- Gonaxia immersa Vervoort & Watson, 2003 [a hydroid] 11 059137
- Gonaxia intercalata Vervoort & Watson, 2003 [a hydroid] 11 059138
- Gonaxia tasmanica Watson & Vervoort, 2001 [a hydroid] 11 059046
- Gonaxia spp. [a hydroid] 11 059905
- Idiellana lepida Watson, 2000 [a hydroid] 11 059028
- Idiellana pristis (Lamouroux, 1816) [a hydroid] 11 059027
- Idiellana spp. [a hydroid] 11 059906
- Salacia alata Watson, 2000 [a hydroid] 11 059033
- Salacia bicalycula (Coughtrey, 1876) [a hydroid] 11 059139
- Salacia bidentata Watson, 2000 [a hydroid] 11 059034
- Salacia desmoides (Torrey, 1902) [a hydroid] 11 059002
- Salacia farquhari (Bale, 1924) [a hydroid] 11 059141
- Salacia flavidula Watson, 2000 [a hydroid] 11 059032
- Salacia hexodon (Busk, 1852) [a hydroid] 11 059029
- Salacia macer Vervoort & Watson, 2003 [a hydroid] 11 059142
- Salacia sinuosa (Bale, 1884) [a hydroid] 11 059030
- Salacia spiralis (Trebilcock, 1928) [a hydroid] 11 059140
- Salacia tetracythara Lamouroux, 1816 [a hydroid] 11 059031
- Salacia spp. [a hydroid] 11 059907
- Sertularia balei Briggs, 1922 [a hydroid] 11 059053
- Sertularia borneensis Billard, 1924 [a hydroid] 11 059058
- Sertularia distans (Lamouroux, 1816) [a hydroid] 11 059143
- Sertularia loculosa Busk, 1852 [a hydroid] 11 059063
- Sertularia marginata (Kirchenpauer, 1864) [a hydroid] 11 059048
- Sertularia tenuis Bale, 1884 [a hydroid] 11 059144
- Sertularia trigonostoma Busk, 1852 [a hydroid] 11 059035
- Sertularia tumida Allman, 1877 [a hydroid] 11 059145
- Sertularia unguiculata Busk, 1852 [a hydroid] 11 059049
- Sertularia spp. 11 059909
- Stereotheca elongata (Lamouroux, 1816) [a hydroid] 11 059001
- Stereotheca spp. [a hydroid] 11 059911
- Tasmanaria aegis Watson & Vervoort, 2001 [a hydroid] 11 059044
- Tasmanaria edentula (Bale, 1924) [a hydroid] 11 059146
- Tasmanaria monticola Watson & Vervoort, 2001 [a hydroid] 11 059045
- Tasmanaria pacifica Vervoort & Watson, 2003 [a hydroid] 11 059147
- Tasmanaria spp. [a hydroid] 11 059913
- Thuiaria operculata Watson, 2000 [a hydroid] 11 059036
- Thuiaria plumularioides Watson, 2000 [a hydroid] 11 059037
- Thuiaria spp. 11 059914
- Tridentata distans (Lamouroux, 1816) [a hydroid] 11 059064
- Tridentata turbinata (Lamouroux, 1816) [a hydroid] 11 059065
- Tridentata spp. 11 059915
- Sertulariidae - undifferentiated hydroids 11 059921
- Solanderia ericopsis (Carter, 1873) [a hydroid] 11 031004
- Solanderia fusca (Gray, 1868) [a hydroid] 11 031001
- Solanderia misakinensis (Inaba, 1892) [a hydroid] 11 031003
- Solanderia secunda (Inaba, 1892) [a hydroid] 11 031002
- Solanderia spp. [a hydroid] 11 031901
- Solanderiidae - undifferentiated hydroids 11 031000
- Pegantha clara Bigelow, 1909 [a hydromedusa] 11 083004
- Pegantha laevis Bigelow, 1909 [a hydromedusa] 11 083005
- Pegantha martagon Haeckel, 1879 [a hydromedusa] 11 083006
- Pegantha rubiginosa (Kölliker, 1853) [a hydromedusa] 11 083001
- Pegantha triloba Haeckel, 1879 [a hydromedusa] 11 083007
- Pegantha spp. [a hydromedusa] 11 083901
- Solmaris lenticula Haeckel, 1879 [a hydromedusa] 11 083003
- Solmaris rhodoloma (Brandt, 1835) [a hydromedusa] 11 083002
- Solmaris spp. [a hydromedusa] 11 083902
- Solmarisidae - undifferentiated hydromedusae 11 083000
- Adelopora alveolata Cairns, 2015 [a hydrocoral] 11 077071
- Adelopora crassilabrum Cairns, 1991 [a hydrocoral] 11 077017
- Adelopora fragilis Cairns, 1991 [a hydrocoral] 11 077018
- Adelopora moseleyi Cairns, 1991 [a hydrocoral] 11 077019
- Adelopora robusta Cairns, 2015 [a hydrocoral] 11 077072
- Adelopora rosea Cairns, 2015 [a hydrocoral] 11 077070
- Adelopora stichopora Cairns, 2015 [a hydrocoral] 11 077069
- Adelopora spp. [a hydrocoral] 11 077909
- Astya aspidopora Cairns, 1991 [a hydrocoral] 11 077059
- Astya spp. [a hydrocoral] 11 077917
- Calyptopora reticulata Boschma, 1968 [a hydrocoral] 11 077044
- Calyptopora zibrowii Cairns, 2015 [a hydrocoral] 11 077097
- Calyptopora spp. [a hydrocoral] 11 077915
- Componospina terebellifera Cairns, 2015 [a hydrocoral] 11 077081
- Componospina spp. [a hydrocoral] 11 077920
- Conopora beebei Cairns, 2015 [a hydrocoral] 11 077102
- Conopora bifacialis Cairns, 2015 [a hydrocoral] 11 077103
- Conopora cactos Cairns, 2015 [a hydrocoral] 11 077099
- Conopora candelabrum Cairns, 1991 [a hydrocoral] 11 077049
- Conopora cardata Cairns, 2015 [a hydrocoral] 11 077104
- Conopora crassisepta Cairns, 2015 [a hydrocoral] 11 077100
- Conopora croca Cairns, 2015 [a hydrocoral] 11 077101
- Conopora fragilis Cairns, 1983 [a hydrocoral] 11 077054
- Conopora gigantea Cairns, 1991 [a hydrocoral] 11 077052
- Conopora laevis (Studer, 1878) [a hydrocoral] 11 077048
- Conopora tetrastichopora Cairns, 1991 [a hydrocoral] 11 077050
- Conopora unifacialis Cairns, 1991 [a hydrocoral] 11 077051
- Conopora verrucosa (Studer, 1878) [a hydrocoral] 11 077010
- Conopora spp. [a hydrocoral] 11 077903
- Crypthelia boucheti Cairns, 2015 [a hydrocoral] 11 077117
- Crypthelia cassiculata Cairns, 2015 [a hydrocoral] 11 077111
- Crypthelia crassa Cairns, 2015 [a hydrocoral] 11 077112
- Crypthelia crenata Cairns, 2015 [a hydrocoral] 11 077115
- Crypthelia cryptotrema Zibrowius, 1981 [a hydrocoral] 11 077106
- Crypthelia curvata Cairns, 1991 [a hydrocoral] 11 077055
- Crypthelia cymas Cairns, 1986 [a hydrocoral] 11 077056
- Crypthelia defensa Cairns, 2015 [a hydrocoral] 11 077119
- Crypthelia deforgesi Cairns, 2015 [a hydrocoral] 11 077107
- Crypthelia jenniferae Cairns, 2015 [a hydrocoral] 11 077121
- Crypthelia laevigata Cairns, 2015 [a hydrocoral] 11 077114
- Crypthelia modesta Cairns, 2015 [a hydrocoral] 11 077110
- Crypthelia parapolypoma Cairns, 2015 [a hydrocoral] 11 077108
- Crypthelia peteri Cairns, 2015 [a hydrocoral] 11 077122
- Crypthelia polypoma Cairns, 1991 [a hydrocoral] 11 077057
- Crypthelia reticulata Cairns, 2015 [a hydrocoral] 11 077118
- Crypthelia robusta Cairns, 1991 [a hydrocoral] 11 077061
- Crypthelia sinuosa Cairns, 2015 [a hydrocoral] 11 077120
- Crypthelia spiralis Cairns, 2015 [a hydrocoral] 11 077113
- Crypthelia stenopoma (Hickson & England, 1905) [a hydrocoral] 11 077060
- Crypthelia variegata Cairns, 2015 [a hydrocoral] 11 077116
- Crypthelia viridis Cairns, 2015 [a hydrocoral] 11 077109
- Crypthelia spp. [a hydrocoral] 11 077902
- Distichopora dispar Cairns, 1991 [a hydrocoral] 11 077029
- Distichopora serpens Broch, 1942 [a hydrocoral] 11 077089
- Distichopora violacea (Pallas, 1766) [a hydrocoral] 11 077088
- Distichopora spp. [a hydrocoral] 11 077913
- Distichozoon dens Cairns, 2015 [a hydrocoral] 11 077124
- Distichozoon spp. [a hydrocoral] 11 077922
- Errina adornata Cairns, 2015 [a hydrocoral] 11 077082
- Errina australis Cairns & Zibrowius, 2013 [a hydrocoral] 11 077009
- Errina bicolor Cairns, 1991 [a hydrocoral] 11 077037
- Errina chathamensis Cairns, 1991 [a hydrocoral] 11 077032
- Errina cheilopora Cairns, 1983 [a hydrocoral] 11 077036
- Errina cooki Cairns, 1991 [a hydrocoral] 11 077034
- Errina dendyi Hickson, 1912 [a hydrocoral] 11 077039
- Errina fissurata Gray, 1872 [a hydrocoral] 11 077001
- Errina gracilis Marenzeller, 1903 [a hydrocoral] 11 077002
- Errina kerguelensis Broch, 1942 [a hydrocoral] 11 077003
- Errina laevigata Cairns, 1991 [a hydrocoral] 11 077033
- Errina laterorifa Eguchi, 1964 [a hydrocoral] 11 077005
- Errina novaezelandiae Hickson, 1912 [a hydrocoral] 11 077031
- Errina reticulata Cairns, 1991 [a hydrocoral] 11 077038
- Errina sinuosa Cairns, 1991 [a hydrocoral] 11 077035
- Errina spp. [a hydrocoral] 11 077904
- Inferiolabiata cervicornis (Broch, 1942) [a hydrocoral] 11 077023
- Inferiolabiata cestospinula Cairns, 2015 [a hydrocoral] 11 077079
- Inferiolabiata labiata (Moseley, 1879) [a hydrocoral] 11 077004
- Inferiolabiata limatula Cairns, 2015 [a hydrocoral] 11 077080
- Inferiolabiata lowei (Cairns, 1983) [a hydrocoral] 11 077007
- Inferiolabiata rhabdion Cairns, 2015 [a hydrocoral] 11 077078
- Inferiolabiata spinosa Cairns, 1991 [a hydrocoral] 11 077008
- Inferiolabiata spp. [a hydrocoral] 11 077905
- Lepidopora cryptocymas Cairns, 1985 [a hydrocoral] 11 077015
- Lepidopora dendrostylus Cairns, 1991 [a hydrocoral] 11 077012
- Lepidopora gelanes Cairns, 2015 [a hydrocoral] 11 077066
- Lepidopora leptoclades Cairns, 2015 [a hydrocoral] 11 077067
- Lepidopora polygonalis Cairns, 2015 [a hydrocoral] 11 077065
- Lepidopora polystichopora Cairns, 1985 [a hydrocoral] 11 077016
- Lepidopora pusilla Cairns, 2015 [a hydrocoral] 11 077064
- Lepidopora sarmentosa (Boschma, 1968) [a hydrocoral] 11 077011
- Lepidopora spinosa Cairns, 2015 [a hydrocoral] 11 077068
- Lepidopora symmetrica Cairns, 1991 [a hydrocoral] 11 077014
- Lepidopora unicaulis Cairns, 2015 [a hydrocoral] 11 077063
- Lepidopora spp. [a hydrocoral] 11 077908
- Lepidotheca altispina Cairns, 1991 [a hydrocoral] 11 077024
- Lepidotheca chauliostylus Cairns, 1991 [a hydrocoral] 11 077022
- Lepidotheca clavata Cairns, 2015 [a hydrocoral] 11 077074
- Lepidotheca fascicularis (Cairns, 1983) [a hydrocoral] 11 077020
- Lepidotheca hebetis Cairns, 2015 [a hydrocoral] 11 077076
- Lepidotheca inconsuta Cairns, 1991 [a hydrocoral] 11 077021
- Lepidotheca minuta Cairns, 2015 [a hydrocoral] 11 077075
- Lepidotheca ranunculata Cairns, 2015 [a hydrocoral] 11 077073
- Lepidotheca robusta Cairns, 1991 [a hydrocoral] 11 077025
- Lepidotheca splendens Cairns, 2015 [a hydrocoral] 11 077077
- Lepidotheca spp. [a hydrocoral] 11 077910
- Leptohelia flexibilis Lindner, Cairns & Zibrowius, 2014 [a hydrocoral] 11 077062
- Leptohelia microstylus (Cairns, 1991) [a hydrocoral] 11 077013
- Leptohelia spp. [a hydrocoral] 11 077919
- Paraconopora anthothelia (Cairns, 1991) [a hydrocoral] 11 077053
- Paraconopora spinosa Cairns, 2015 [a hydrocoral] 11 077105
- Paraconopora spp. [a hydrocoral] 11 077921
- Pseudocrypthelia apoma Cairns, 2015 [a hydrocoral] 11 077123
- Pseudocrypthelia pachypoma (Hickson & England, 1905) [a hydrocoral] 11 077058
- Pseudocrypthelia spp. [a hydrocoral] 11 077918
- Sporadopora micropora Cairns, 1991 [a hydrocoral] 11 077028
- Sporadopora mortenseni Broch, 1942 [a hydrocoral] 11 077027
- Sporadopora spp. [a hydrocoral] 11 077912
- Stenohelia aurantiaca Cairns, 2015 [a hydrocoral] 11 077098
- Stenohelia conferta Boschma, 1968 [a hydrocoral] 11 077046
- Stenohelia spp. [a hydrocoral] 11 077916
- Stephanohelia crassa Cairns, 2015 [a hydrocoral] 11 077085
- Stephanohelia gracilis Cairns, 2015 [a hydrocoral] 11 077084
- Stephanohelia praecipua Cairns, 1991 [a hydrocoral] 11 077026
- Stephanohelia sulfurea Cairns, 2015 [a hydrocoral] 11 077083
- Stephanohelia spp. [a hydrocoral] 11 077911
- Stylaster biflabellum Cairns, 2015 [a hydrocoral] 11 077090
- Stylaster brunneus Boschma, 1970 [a hydrocoral] 11 077040
- Stylaster diastemata Cairns, 2015 [a hydrocoral] 11 077091
- Stylaster eguchii (Boschma, 1966) [a hydrocoral] 11 077006
- Stylaster fundatus Cairns, 2015 [a hydrocoral] 11 077095
- Stylaster gracilis Milne Edwards & Haime, 1850 [a hydrocoral] 11 077043
- Stylaster horologium Cairns, 1991 [a hydrocoral] 11 077041
- Stylaster imbricatus Cairns, 1991 [a hydrocoral] 11 077042
- Stylaster lindneri Cairns, 2015 [a hydrocoral] 11 077093
- Stylaster obtusus Cairns, 2015 [a hydrocoral] 11 077096
- Stylaster polystomos Cairns, 2015 [a hydrocoral] 11 077094
- Stylaster sanguineus Valenciennes in Milne Edwards & Haime, 1850 [a hydrocoral] 11 077092
- Stylaster sinuosus (Cairns, 1991) [a hydrocoral] 11 077045
- Stylaster spp. [a hydrocoral] 11 077901
- Systemapora ornata Cairns, 1991 [a hydrocoral] 11 077030
- Systemapora solida Cairns, 2015 [a hydrocoral] 11 077086
- Systemapora vermifera Cairns, 2015 [a hydrocoral] 11 077087
- Systemapora spp. [a hydrocoral] 11 077914
- Hydrocorals: Submassive / encrusting 11 077907
- Hydrocorals: branching 11 077906
- Stylasteridae - undifferentiated hydrocorals 11 077000
- Hincksella cylindrica (Bale, 1888) [a hydroid] 11 060002
- Hincksella sibogae Billard, 1918 [a hydroid] 11 060006
- Hincksella spp. [a hydroid] 11 060901
- Synthecium brucei Vervoort & Watson, 2003 [a hydroid] 11 060007
- Synthecium campylocarpum Allman, 1888 [a hydroid] 11 060001
- Synthecium carinatum Totton, 1930 [a hydroid] 11 060008
- Synthecium elegans Allman, 1872 [a hydroid] 11 060009
- Synthecium gordoni Vervoort & Watson, 2003 [a hydroid] 11 060010
- Synthecium megathecum Billard, 1925 [a hydroid] 11 060011
- Synthecium orthogonium (Busk, 1852) [a hydroid] 11 060003
- Synthecium patulum (Busk, 1852) [a hydroid] 11 060004
- Synthecium protectum Jäderholm, 1903 [a hydroid] 11 060012
- Synthecium subventricosum Bale, 1914 [a hydroid] 11 060005
- Synthecium tottoni Ralph, 1958 [a hydroid] 11 060013
- Synthecium spp. [a hydroid] 11 060902
- Syntheciidae - undifferentiated hydroids 11 060000
- Parascyphus simplex (Lamouroux, 1816) [a hydroid] 11 061005
- Parascyphus spp. [a hydroid] 11 061901
- Symmetroscyphus australis Vervoort & Watson, 2003 [a hydroid] 11 061006
- Symmetroscyphus spp. [a hydroid] 11 061904
- Thyroscyphoides sympodialis Watson, 2003 [a hydroid] 11 061001
- Thyroscyphoides spp. 11 061902
- Thyroscyphus fruticosus (Esper, 1793) [a hydroid] 11 061002
- Thyroscyphus macrocytharus (Lamouroux, 1824) [a hydroid] 11 061003
- Thyroscyphus torresii (Busk, 1852) [a hydroid] 11 061004
- Thyroscyphus spp. [a hydroid] 11 061903
- Thyroscyphidae - undifferentiated hydroids 11 061000
- Chromatonema rubrum Fewkes, 1882 [a hydromedusa] 11 041002
- Chromatonema spp. [a hydromedusa] 11 041902
- Modeeria rotunda (Quoy & Gaimard, 1827) [a hydroid] 11 041003
- Modeeria spp. [a hydroid] 11 041903
- Stegolaria geniculata (Allman, 1888) [a hydroid] 11 041001
- Stegolaria irregularis Totton, 1930 [a hydroid] 11 041004
- Stegolaria operculata (Nutting, 1905) [a hydroid] 11 041005
- Stegolaria spp. 11 041901
- Tiarannidae - undifferentiated hydroids 11 041000
- Ectopleura crocea (L. Agassiz, 1862) [a hydroid] 11 035004
- Ectopleura larynx (Ellis & Solander, 1786) [a hydroid] 11 035012
- Ectopleura minerva Mayer, 1910 [a hydroid] 11 035013
- Ectopleura multicirrata Schuchert, 1996 [a hydroid] 11 035014
- Ectopleura spp. [a hydroid] 11 035903
- Hybocodon cryptus Watson, 1984 [a hydroid] 11 035007
- Hybocodon prolifer L. Agassiz, 1862 [a hydroid] 11 035015
- Hybocodon spp. [a hydroid] 11 035901
- Lobataria newtoni Watson, 2008 [a hydroid] 11 035008
- Lobataria spp. 11 035902
- Ralpharia coccinea Watson, 1984 [a hydroid] 11 035006
- Ralpharia magnifica Watson, 1980 [a hydroid] 11 035001
- Ralpharia rosetta Watson, 1999 [a hydroid] 11 035002
- Ralpharia spp. 11 035904
- Tubularia exxonia Watson, 1978 [a hydroid] 11 035005
- Tubularia hodgsoni Hickson & Gravely, 1907 [a hydroid] 11 035009
- Tubularia longstaffi Hickson & Gravely, 1907 [a hydroid] 11 035010
- Tubularia spp. [a hydroid] 11 035905
- Zyzzyzus parvula (Hickson & Gravely, 1907) [a hydroid] 11 035011
- Zyzzyzus spongicolus (von Lendenfeld, 1884) [a hydroid] 11 035003
- Zyzzyzus spp. [a hydroid] 11 035906
- Tubulariidae - undifferentiated hydroids 11 035000
- Zanclea baudini Gershwin & Zeidler, 2003 [a hydroid] 11 037004
- Zanclea carinata Gershwin & Zeidler, 2003 [a hydroid] 11 037003
- Zanclea hicksoni (Stepanjants, 1972) [a hydroid] 11 037006
- Zanclea margaritae Pantos & Bythell, 2010 [a hydroid] 11 037005
- Zanclea ngeriana Gershwin & Zeidler, 2003 [a hydroid] 11 037002
- Zanclea polymorpha Schuchert, 1996 [a hydroid] 11 037007
- Zanclea sardii Gershwin & Zeidler, 2003 [a hydroid] 11 037001
- Zanclea spp. [a hydroid] 11 037901
- Zancleidae - undifferentiated hydroids 11 037000
- Order Actinulida - undifferentiated actinulids 11 108002
- Order Hydroida - undifferentiated hydroids 11 001000
- Order Anthoathecata - undifferentiated hydroids 11 002000
- Suborder Calycophora - undifferentiated siphonophores 11 090901
- Order Narcomedusae - undifferentiated hydromedusae 11 080000
- Order Siphonophora - undifferentiated siphonophores 11 090000
- Order Leptothecata - undifferentiated hydroids 11 042000