336 INDEX GENERUM MAMMALIUM, 
Hydromys—Continued. 
Species: Mus coypus Gmelin, from Chile; Hydromis chrysogaster Geoffroy, from an 
island in Entrecasteaux Channel, Tasmania; and H. leucogaster Geoffroy, from 
Maria Island, southeast coast of Tasmania. 
Hydromys: Viwp (tdp-), water; “0s, mouse—‘water rat,’ from the animal's 
aquatic habits. a 
Hydropithecus GLocEn, 1841. Sirenia*, i 
Hand.- u. Hilfsbuch Naturgesch., I, pp. xxxiv, 166, 1841; THomas, Ann. & Mag. 
Nat. Hist., 6th ser., XV, 193, Feb. 1, 1895. 
Type: Hydropithecus simia Gloger, based on the ‘Seeaffe’ of Steller ( Manatus 
simia Illiger), from the northwest coast of America. Indeterminable. 
Hydropithecus: 08 cp (b6p-), water; 7167K 0s, ape—a Greek equivalent of ‘Seeaffe.’ 
Hydropotes Swinnor, 1870. Ungulata, Artiodactyla, Cervide. 
Proc. Zool. Soc. London, 1870, p. 90, pls. 6, 7 
Type: Hydropotes inermis Swinhoe, from an island in the Yangtsze River, China. 
Name said to be preoccupied by Hydropota Rondani, 1861, a genus of Diptera. 
Replaced by Hydrelaphus Lydekker, 1898. 
Hydropotes: 0d wp (bdp-), water; zór7s, drinker—‘‘ water drinker, from the love 
of the animal for marshy ground."  (SwrNHok.) 
Hydro-Sorex (subgenus of Sorex) Duvernoy, 1835. Insectivora, Soricidz. 
Mém. Mus. Hist. Nat. Strassbourg, II, sig. v, 17, 1835; Mag. de Zool, 1842, 
Mamm., 34, pl 11. 
Type: Sorex fodiens Pallas, from Europe. (In the supplement on the shrews 
[Mém. Strassbourg, II, 4—5, 1838] Sorex hermanni Duvernoy, which is the 
type of 4mphi-Sorer Duvernoy, is made the type of this subgenus!) See 
Neomys Kaup, 1829; and Crossopus Wagler, 1832. 
Hydrosorer: vip ($850-) water; + Sorex. 
Hydrotapirus Ponric, 1888. Ungulata, ? 
Nova Acta Acad. Css. Leop.-Carol., LIII, Nr. 1, p. 257, 1888 (nomen nudum). 
Hypothetical genus, provisionally proposed for a form closely allied to Proto- 
tapirus, the supposed common ancestor of the Ungulata and Sirenia, or 
possibly intermediate between it and the Sirenia. 
Hydrotapirus: té@p (585-) water; + Tapirus. 
Hydrotidasson GisrEL, 1848. Fere, Viverride. 
Naturgesch. Thierreichs f. hóhere Schulen, p. x, 1848 (under Potamophilus). 
New name for Potamophilus 8. Müller, 1838-39, which is preoccupied by Potamo- 
philus Germar, 1811, a genus of Coleoptera. 
Hudrotidasson: 08cp (b6p-) water; tidasson, wild beast (‘‘ein uralt Wort, was 
wildes Thier bedeutet.'—GrsTEL). 
Hydrotragus Firzincer, 1866. Ungulata, Artiodactyla, Bovidz. 
Sitzungsber Math.-Nat. Cl. K. Akad. Wiss. Wien, LIV, Abth. I, 596—597, 1866; 
ScLATER & THomas, Book of Antelopes, II, pt. vr, 95, Aug., 1896 (in Bip 
type fixed). 
Species, 5: Adenota kul Heuglin (type), A. wuil Heuglin, A. leché Gray, A. mega- 
ceros Heuglin, and Antilope leucotis Lichtenstein, from northeastern (?) Africa. 
Hydrotragus: téwp (bdp-) water; Teayos, goat. 
Hydrotragus (subg. of Euryceros) Gray, 1872. Ungulata, Artiodactyla, Bovide. 
Cat. Ruminant Mamm. Brit. Mus., 49, 1872. 
Type: Tragelaphus spekei Sclater, from Karagweh, near Lake Victoria Nyanza, 
East Africa. 
Name preoccupied by Hydrotragus Fitzinger, 1866, a different genus of antelopes. 
Replaced by Limnotragus Sclater & To: 1900. 
* Hydropithec us is ia in ix Sinaia is TES but it UTE belongs to the 
Fer:, either in the I 'innipedia or Mustelid:ze, 

