HIPPOPOTAMUS——HIPPOTHERICUM. 522A 
Hippopotamus—Continued. 
Species: Hippopotamus amphibius Linneus (type), from the Nile; and 77. terrestris 
Linn:eus, from Brazil. 
Hippopotamus: immonorasos, river horse. 
Hippops Mansu, 1892. Ungulata, Perissodactyla, Equid:e? 
Am. Journ. Sci., 3d ser., XLIII, No. 256, p. 351, Apr., 1892. 
Type species not named. ‘‘The oldest ancestor of the horse, as yet undiscovered, 
undoubtedly had five toes on each foot, and probably was not larger than a 
rabbit, perhaps much smaller . . . It may be called Hippops, and its remains 
will be found at the base of the Tertiary, or more likely in the latest 
Cretaceous." (Marsn. ) 
Hypothetical. 
Hippops: immo, horse; ow, aspect. 
Hipporussa Herupr, 1899. Ungulata, Artiodactyla, Cervidze. 
Mém, Hist. Nat. Empire Chinois, IV, pt. 3, p. 134, 1899; ibid., pt. 4, p. 208, 1899. 
Type: Cervus equinus F. Cuvier, from Borneo and Sumatra. : 
Hipporussa: ?z70s, horse; Malay, rusa or russa deer—‘horse deer. 
Hippos Gray, 1869. Ungulata, Perissodactyla, Equid:e? 
Cat. Carn., Pachyderm., & Edentate Mamm. Brit. Mus., 262, 1869 (nomen 
nudum). 
** A large number of fossil genera belong to this suborder [Nasuta], as Anoplo- 
therium, Xiphodon, Dichotrichus, Cainotherium, Merycopotamus, Adapis, Micro- 
cherus, Hippos, . . . but many of these are only known from a few bones 
or teeth." (GRray.) 
Extinct. 
Hippos: txzos, horse. 
Hipposideros Gray, 1831. Chiroptera, Rhinolophide. 
Zool. Miscellany, 37-38, 1831; Mag. Zool. & Bot., II, 492, 1838. 
Hipposiderus Gray, Proc. Zool. Soc. London, No. xvii, 52-53, Sept. 26, 1834; 
Brawronp, Proc. Zool. Soc. London, 1887, 637-638; W. L. ScLATER, Mamm. 
S. Africa, II, 116-118, fig. 121, 1901 (type fixed). 
Species, 8: Hipposideros speoris (type), IT. elongatus, H. diadema, IT. larvatus, H. 
vulgaris, H. deformis, all from Asia; and H. tridens from Africa. 
Hipposideros: ix7os, horse; 6idnpos, iron—i. e., horseshoe—in allusion to the 
form of the anterior part of the complicated nose leaf. 
Hipposyus Lzrpv, 1872. . Primates, Notharctide. 
Proc. Acad. Nat. Sci. Phila., June 25, 1872, 37; Osporn, Bull. Am. Mus. Nat. 
Hist., N. Y., XVI, 198, June 28, 1902. 
Hypposhyus AMEGHINO, Act. Acad. Nac. Cien., Córdoba, VI, 960, 1889. 
Type: Hipposyus formosus Leidy, from the Eocene (Bridger) of Wyoming. 
Extinct. Based on ‘‘an upper jaw fragment with two molars; . . . [and] a 
lower jaw fragment with a single molar." 
Hipposyus: tz706, horse; 60s, 6v0zc, pig. 
Hippotamus Rarinesque, 1815. Ungulata, Artiodactyla, Hippopotanid:e. 
Analyse de la Nature, 56, 1815. 
New name for Hippopotamus Linn:eus, 1758 (* Hippotamus R. Hippopotamus L.’ ). 
Hippotamus: Old French hippotame (from Lat. hippopotamus), hippopotamus. 
Hippotherium (subg. of Equus) Kavr, 1833. Ungulata, Perissodactyla, Equid. 
Neues Jahrbuch Mineralogie, 1833, 327; ibid., 1835, 622; Oken’s Isis, 1834, 314 
(raised to generic rank); Nova Acta Acad. Cves. Leop.-Carol., XVII, pt. 1 
174-181, tab. 12 B, 1835 (subgenus). 
, 
