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 |
|---|---|---|
| Hexacorbula esmeralda (Olsson, 1961) | BivalviaMollusca | Accepted speciesExtinction status not supplied |
| Hexagrammos agrammus (Temminck & Schlegel, 1843) | HexagrammidaeChordata | Accepted speciesExtinction status not supplied |
| kelp greenlingHexagrammos decagrammus (Pallas, 1810) | HexagrammidaeChordata | Accepted speciesExtinction status not supplied |
| rock greenlingHexagrammos lagocephalus (Pallas, 1810) | HexagrammidaeChordata | Accepted speciesExtinction status not supplied |
| masked greenlingHexagrammos octogrammus (Pallas, 1814) | HexagrammidaeChordata | Accepted speciesExtinction status not supplied |
| Fat greenlingHexagrammos otakii Jordan & Starks, 1895 | HexagrammidaeChordata | Accepted speciesExtinction status not supplied |
| whitespotted greenlingHexagrammos stelleri Tilesius, 1810 | HexagrammidaeChordata | Accepted speciesExtinction status not supplied |
| bluntnose sixgill sharkHexanchus griseus (Bonnaterre, 1788) | HexanchidaeChordata | Accepted speciesExtinction status not supplied |
| bigeye sixgill sharkHexanchus nakamurai Teng, 1962 | HexanchidaeChordata | Accepted speciesExtinction status not supplied |
| sixgill sharkHexanchus vitulus Springer & Waller, 1969 | HexanchidaeChordata | Accepted speciesExtinction status not supplied |
| Hexanematichthys henni Fisher & Eigenmann, 1922 | AriidaeChordata | Accepted speciesExtinction status not supplied |
| Hexanematichthys mastersi (Ogilby, 1898) | AriidaeChordata | Accepted speciesExtinction status not supplied |
| Hexanematichthys sagor (Hamilton, 1822) | AriidaeChordata | Accepted speciesExtinction status not supplied |
| Hexaplex angularis (Lamarck, 1822) | MuricidaeMollusca | Accepted speciesExtinction status not supplied |
| endive murexHexaplex cichoreum (Gmelin, 1791) | MuricidaeMollusca | Accepted speciesExtinction status not supplied |
| Hexaplex kuesterianus (Tapparone Canefri, 1875) | MuricidaeMollusca | Accepted speciesRecorded extant |
| Hexaplex princeps (Broderip, 1833) | MuricidaeMollusca | Accepted speciesExtinction status not supplied |
| Hexaplex rileyi D'Attilio & B. W. Myers, 1984 | MuricidaeMollusca | Accepted speciesExtinction status not supplied |
| Hexaplex saharicus (Locard, 1897) | MuricidaeMollusca | Accepted speciesExtinction status not supplied |
| banded dye-murexHexaplex trunculus (Linnaeus, 1758) | MuricidaeMollusca | Accepted speciesExtinction status not supplied |
| Hexatrygon bickelli Heemstra & Smith, 1980 | HexatrygonidaeChordata | Accepted speciesExtinction status not supplied |
| Imposter HutiaHexolobodon phenax Miller, 1929 | EchimyidaeChordata | Accepted speciesRecorded extinct |
| Hiatavolva depressa (G. B. Sowerby III, 1875) | OvulidaeMollusca | Accepted speciesExtinction status not supplied |
| Arctic hiatellaHiatella arctica (Linnaeus, 1767) | HiatellidaeMollusca | Accepted speciesRecorded extant |
| Hiatella australis (Lamarck, 1818) | HiatellidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatirhaphis cascajalensis (Meek & Hildebrand, 1913) | PoeciliidaeChordata | Accepted speciesExtinction status not supplied |
| Hiatula ambigua (Reeve, 1857) | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatula atrata (Reeve, 1857) | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatula biradiata (W. Wood, 1815) | PsammobiidaeMollusca | Accepted speciesRecorded extant |
| Hiatula chinensis (Mörch, 1853) | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatula clouei Bertin, 1880 | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatula nitida (J. E. Gray, 1843) | PsammobiidaeMollusca | Accepted speciesRecorded extant |
| Hiatula petalina (Deshayes, 1855) | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatula rosea (Gmelin, 1791) | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hiatula tumens (Reeve, 1857) | PsammobiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hibolites hastatus (Montfort, 1808) | BelemnopseidaeMollusca | Accepted speciesRecorded extinct |
| Hibolithes catlinensis (Hector, 1878) | CephalopodaMollusca | Accepted speciesRecorded extinct |
| Little EagleHieraaetus morphnoides (Gould, 1841) | AccipitridaeChordata | Accepted speciesRecorded extant |
| Booted EagleHieraaetus pennatus (J. F. Gmelin, 1788) | AccipitridaeChordata | Accepted speciesRecorded extant |
| Wahlberg's EagleHieraaetus wahlbergi (Sundevall, 1850) | AccipitridaeChordata | Accepted speciesRecorded extant |
| Pygmy EagleHieraaetus weiskei (Reichenow, 1900) | AccipitridaeChordata | Accepted speciesRecorded extant |
| Northern Hawk-cuckooHierococcyx hyperythrus (Gould, 1856) | CuculidaeChordata | Accepted speciesRecorded extant |
| Hodgson's Hawk-CuckooHierococcyx nisicolor (Blyth, 1843) | CuculidaeChordata | Accepted speciesRecorded extant |
| Philippine Hawk-CuckooHierococcyx pectoralis Cabanis & Heine, 1863 | CuculidaeChordata | Accepted speciesRecorded extant |
| Large Hawk-CuckooHierococcyx sparverioides (Vigors, 1832) | CuculidaeChordata | Accepted speciesRecorded extant |
| Moustached Hawk-CuckooHierococcyx vagans (S. Müller, 1845) | CuculidaeChordata | Accepted speciesRecorded extant |
| Balkan RacerHierophis gemonensis (Laurenti, 1768) | ColubridaeChordata | Accepted speciesExtinction status not supplied |
| Dark Green SnakeHierophis viridiflavus (Lacépède, 1789) | ColubridaeChordata | Accepted speciesExtinction status not supplied |
| Hildaites bisulcatus Sassaroli & Venturi, 2012 | HildoceratidaeMollusca | Accepted speciesRecorded extinct |
| Hildaites calamantis Sassaroli & Venturi, 2012 | HildoceratidaeMollusca | Accepted speciesRecorded extinct |
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.