THE NATURAL-HISTORY CATALOGUE
A branch of the living world.
110,000 accepted animal species, linked through classification, synonyms, distributions and source literature.
These attributed records come from Catalogue of Life, 2026-09-11. Detail varies; they are not all fully researched, illustrated articles. Browse researched folklore and fiction.
Matches documented source distribution records. Geographic coverage is incomplete.
| Species | Classification | Source status |
|---|---|---|
| South-American Snake-headed TurtleHydromedusa tectifera Cope, 1870 | ChelidaeChordata | Accepted speciesExtinction status not supplied |
| Costa Rica Water SnakeHydromorphus concolor Peters, 1859 | ColubridaeChordata | Accepted speciesExtinction status not supplied |
| Dunn's Water SnakeHydromorphus dunni Slevin, 1942 | ColubridaeChordata | Accepted speciesExtinction status not supplied |
| Common Water RatHydromys chrysogaster É. Geoffroy, 1804 | MuridaeChordata | Accepted speciesRecorded extant |
| Husson's Water RatHydromys hussoni Musser & Piik, 1982 | MuridaeChordata | Accepted speciesRecorded extant |
| New Britain Water RatHydromys neobritannicus Tate & Archbold, 1935 | MuridaeChordata | Accepted speciesRecorded extant |
| Hydromys ziegleri Helgen, 2005 | MuridaeChordata | Accepted speciesRecorded extant |
| Annandale’s sea snakeHydrophis annandalei (Laidlaw, 1901) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Faint-banded SeasnakeHydrophis belcheri (Gray, 1849) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Peters' Sea SnakeHydrophis bituberculatus Peters, 1873 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Hydrophis brookii Günther, 1872 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Dwarf SeasnakeHydrophis caerulescens (Shaw, 1802) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Slender-necked SeasnakeHydrophis coggeri (Kharin, 1984) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Hardwicke’s Sea SnakeHydrophis curtus (Shaw, 1802) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Annulated Sea SnakeHydrophis cyanocinctus Daudin, 1803 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Fine-spined SeasnakeHydrophis czeblukovi (Kharin, 1984) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| rough scaled sea snakeHydrophis donaldi Ukuwela, Sanders & Fry, 2012 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Elegant or bar-bellied seasnakeHydrophis elegans (Gray, 1842) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Striped Sea SnakeHydrophis fasciatus (Schneider, 1799) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Hardwicke’s spine-bellied seasnakeHydrophis hardwickii (Gray, 1834) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Hydrophis hendersoni (Boulenger, 1903) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Inornate Sea SnakeHydrophis inornatus (Gray, 1849) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Kloss' Sea SnakeHydrophis klossi Boulenger, 1912 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Lambert's Sea SnakeHydrophis lamberti Smith, 1917 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Persian Gulf Sea SnakeHydrophis lapemoides (Gray, 1849) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Small-headed or McDowell’s seasnakeHydrophis macdowelli Kharin, 1983 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Bombay Sea SnakeHydrophis mamillaris (Daudin, 1803) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Slender-necked SeasnakeHydrophis melanocephalus Gray, 1849 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Black-banded sea snakeHydrophis nigrocinctus Daudin, 1803 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Estuarine Sea SnakeHydrophis obscurus Daudin, 1803 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Ornate Reef seasnakeHydrophis ornatus (Gray, 1842) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Hydrophis pachycercos Fischer, 1855 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Pacific seasnakeHydrophis pacificus Boulenger, 1896 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Spiny-headed seasnakeHydrophis peronii (Duméril, 1853) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Pelagic Sea SnakeHydrophis platurus (Linnaeus, 1766) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Common or beaked seasnakeHydrophis schistosus Daudin, 1803 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Lake Taal SnakeHydrophis semperi Garman, 1881 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Kalimantan Sea SnakeHydrophis sibauensis Rasmussen, Auliya & Böhme, 2001 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Blotch-backed giant sea snakeHydrophis spiralis (Shaw, 1802) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Stoke’s seasnakeHydrophis stokesii (Gray, 1846) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Collared Sea SnakeHydrophis stricticollis Günther, 1864 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| West Coast Black-headed Sea SnakeHydrophis torquatus Günther, 1864 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Grey sea snakeHydrophis viperinus (Schmidt, 1852) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Estuarine seasnakeHydrophis vorisi Kharin, 1984 | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Sepik or Zweifel’s beaked seasnakeHydrophis zweifeli (Kharin, 1985) | ElapidaeChordata | Accepted speciesExtinction status not supplied |
| Chinese Water DeerHydropotes inermis Swinhoe, 1870 | CervidaeChordata | Accepted speciesRecorded extant |
| Caspian TernHydroprogne caspia (Pallas, 1770) | LaridaeChordata | Accepted speciesRecorded extant |
| Hydrops caesurus Scrocchi, Ferreira, Giraudo, Ávila & Motte, 2005 | ColubridaeChordata | Accepted speciesExtinction status not supplied |
| Amazon Water SnakeHydrops martii (Wagler, 1824) | ColubridaeChordata | Accepted speciesExtinction status not supplied |
| Triangle Water SnakeHydrops triangularis (Wagler, 1824) | ColubridaeChordata | Accepted speciesExtinction status not supplied |
Source and selection
Bánki, O., Roskov, Y., Döring, M., Ower, G., Hernández Robles, D. R., Plata Corredor, C. A., Stjernegaard Jeppesen, T., Örn, A., Pape, T., Hobern, D., Garnett, S., Little, H., DeWalt, R. E., Miller, J., Orrell, T., Aalbu, R., Abbott, J., Aedo, C., Aescht, E., et al. (2026). Catalogue of Life (Version 2026-09-11). Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgz5n
First records in source order under phylum quotas, then source-order overflow if a quota is short. This is a selective snapshot. Source name strings can include author names, which are also searchable.