Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade dorsates Cavalier-Smith, 2021
Clade podiates Cavalier-Smith, 2012
Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
Kingdom Animalia Linnaeus, 1758 - animals
Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
Subkingdom Bilateria Hatschek, 1888 - bilaterians
Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
Infrakingdom Deuterostomia Grobben, 1908
Phylum Chordata Bateson, 1885 - chordates
Subphylum Craniata auct.
Infraphylum Vertebrata Lamarck, 1801 - vertebrates
Clade Pan-Gnathostomata Downs 2020
Superclass Gnathostomataᵀ Gegenbaur, 1874 - jawed vertebrates
[crown] Clade Eugnathostomata
Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
Clade Pan-Actinopterygii Rowe 2004 [Moore & Near 2020]
Clade Actinopterygiiᵀ Woodward 1891 [Moore & Near 2020]
Clade Pan-Actinopteri Moore & Near 2020
Class Actinopteri Cope, 1871
Subclass Neopterygii Regan, 1923
Infraclass Teleosteomorpha Arratia, 2001
Division Teleostei Müller, 1845
Supercohort Teleocephala de Pinna, 1996 - crown-group Teleostei
Cohort Clupeocephala Patterson & Rosen, 1977
Subcohort Euteleosteomorpha Greenwood et al., 1966
Infracohort Neoteleostei Nelson, 1969
Supersection Eurypterygia Rosen, 1973
Section Ctenosquamata Rosen, 1973
Subsection Acanthomorphata Rosen, 1973
Clade Euacanthomorpha Johnson & Patterson, 1993
Clade Holacanthopterygii Johnson & Patterson, 1993
Division Acanthopterygii Rosen & Patterson, 1969
Subdivision Percomorphaceae
Series Syngnatharia [monotypic]
Order Syngnathiformesᵀ Berg, 1940 - pipefishes and seahorses
Suborder Syngnathoideiᵀ Berg, 1940
Infraorder Syngnathaᵀ Pietsch, 1978
Family Syngnathidae Bonaparte, 1831 - pipefishes and seahorses
Subfamily Syngnathinaeᵀ Bonaparte, 1831 - tail-brooding pipefishes
Genus Hippocampus Rafinesque, 1810 - seahorse
01.1 Hippocampus abdominalis Lesson, 1827 - big-bellied seahorse
01.2 Hippocampus bleekeri Fowler, 1907
02 Hippocampus alatus Kuiter, 2001
03 Hippocampus algiricus Kaup, 1856 - West African seahorse
04 Hippocampus angustus Günther, 1870 - narrow-bellied seahorse
05 Hippocampus barbouri Jordan & Richardson, 1908 - Barbour's seahorse
06 Hippocampus bargibanti Whitley, 1970 - Bargibant's seahorse
07 Hippocampus biocellatus Kuiter, 2001
08 Hippocampus borboniensis Duméril, 1870 - Réunion seahorse
09.1 Hippocampus breviceps Peters, 1869 - knobby seahorse
09.2 Hippocampus tuberculatus Castelnau, 1875
10 Hippocampus camelopardalis Bianconi, 1854 - giraffe seahorse
11 Hippocampus capensis Boulenger, 1900 - Cape seahorse
12 Hippocampus colemani Kuiter, 2003
13 Hippocampus comes Cantor, 1849
14 Hippocampus coronatus Temminck & Schlegel, 1850 - crowned seahorse
15 Hippocampus curvicuspis Fricke, 2004
16 Hippocampus debelius Gomon & Kuiter, 2009 - soft-coral seahorse
17 Hippocampus denise Lourie & Randall, 2003
18 Hippocampus erectus Perry, 1810 - lined seahorse
19 Hippocampus fisheri Jordan & Evermann, 1903 - Fisher's seahorse
20 Hippocampus fuscus Rüppell, 1838 - sea pony
21 Hippocampus grandiceps Kuiter, 2001
22 Hippocampus guttulatus Cuvier, 1829 - long-snouted seahorse
23 Hippocampus hendriki Kuiter, 2001
24 Hippocampus hippocampus (C. Linnaeus, 1758) - short-snouted seahorse
25 Hippocampus histrix Kaup, 1856 - spiny seahorse
26 Hippocampus ingens Girard, 1858 - Pacific seahorse
27 Hippocampus jayakari Boulenger, 1900 - Jayakar's seahorse
28 Hippocampus jugumus Kuiter, 2001
29 Hippocampus kelloggi Jordan & Snyder, 1901 - great seahorse
30.1 Hippocampus kuda Bleeker, 1852
30.2 Hippocampus moluccensis Bleeker, 1852
30.3 Hippocampus polytaenia Bleeker, 1854
30.4 Hippocampus taeniopterus Bleeker, 1852
30.5 Hippocampus tristis Castelnau, 1872
31 Hippocampus lichtensteinii Kaup, 1856 - Lichtenstein's Seahorse
32 Hippocampus minotaur Gomon, 1997 - bullneck seahorse
33 Hippocampus mohnikei Bleeker, 1853 - Japanese seahorse
34 Hippocampus montebelloensis Kuiter, 2001
35 Hippocampus multispinus Kuiter, 2001
36 Hippocampus patagonicus Piacentino & Luzzatto, 2004
37 Hippocampus pontohi Lourie & Kuiter, 2008 - Pontoh's pygmy seahorse
38 Hippocampus procerus Kuiter, 2001
39 Hippocampus pusillus Fricke, 2004
40 Hippocampus queenslandicus Horne, 2001
41 Hippocampus reidi Ginsburg, 1933 - longsnout seahorse
42 Hippocampus satomiae Lourie & Kuiter, 2008 - Satomi's pygmy seahorse
43 Hippocampus semispinosus Kuiter, 2001
44 Hippocampus severnsi S. Lourie & Kuiter, 2008 - Severns's pygmy seahorse
45 Hippocampus sindonis Jordan & Snyder, 1901 - Dhiho's seahorse
46 Hippocampus spinosissimus Weber, 1913 - hedgehog seahorse
47 Hippocampus subelongatus Castelnau, 1873 - tiger snout seahorse
48.1 Hippocampus trimaculatus Leach, in Leach & Nodder, 1814 - three-spotted seahorse
48.2 Hippocampus dahli Ogilby, 1908
48.3 Hippocampus kampylotrachelos Bleeker, 1854
48.4 Hippocampus planifrons Peters, 1877
49 Hippocampus waleananus Gomon & Kuiter, 2009 - Walea pygmy seahorse
50 Hippocampus whitei Bleeker, 1855 - White's seahorse
51 Hippocampus zebra Whitley, 1964 - zebra seahorse
52 Hippocampus zosterae Jordan & Gilbert, 1882 - dwarf seahorse