684 INDEX GENERUM MAMMALIUM. 
Trachytherium Gervais, 1849. Sirenia, Halitheriide ? 
Mém. Acad. Sci. Montpellier, I, pt. m1, 217, 1849 (nomen nudum); Comptes 
Rendus, Paris, XX VIII, No. 21, pp. 644-645, Jan.-June,.1849; Zool. et Paléont. 
Franc., 1* éd., I, 145, tab. xr1 fig. 2, 1848-52; 2* éd., 282-283, pl. xu fig. 2, 1859. 
Type: Trachytherium raulinii Gervais, from Réole, Gironde, France. 
Extinct. Based on a last lower molar. 
Trachytherium: rpayós, rough; 67píov, wild beast—in allusion to the form of 
the last lower molar. ‘‘Elle est à trois collines, composées chacune de deux 
tubercules mousses et d'un tubercule supplémentaire, . . . au total, sept 
tubercules sur trois rangs." 
Trachytherus AwEaGniNo, 1889. Ungulata, Typotheria, Eutrachytheriidz. 
**'Trachitherus spegazzinianus nuevo mamifero fósil del órden de los toxodontes, 
Marzo de 1889" (fide AwxEanurNo, Cont. Conocimiento Mamif. Fósil. Repub. 
Argentina, in Act. Acad. Nac. Cien., Córdoba, VI, 918-919, pls. Lxx1x figs. 
1-2, xovit fig. 3, 1889). 
Type: Trachytherus spegazzinianus Ameghino, from the Province of Neuquen, 
Argentina. 
Name preoccupied by Trachytherium Gervais, 1849, a genus of Sirenia. Replaced 
by Eutrachytherus Ameghino, 1897. 
Extinct. Based on a nearly complete palate with the greater part of the 
dentition. 
Trachytherus: rpayos, rough, savage; 9779, wild beast. 
Tragelaphus BrAiNviLLE, 1816. Ungulata, Artiodactyla, Bovide. 
Bull. Soe. Philomatique, Paris, May, 1816, 75; Sctarer & THomas, Book of 
Antelopes, IV, pt. xv, 103-148, pls. nxxxvimn-xcmn, text figs. 100-107, Jan., 
1900 (type fixed); W. L. SctATER, Mamm. 8. Africa, I, 229-240, figs. 60-61, 1900 
(type given as A. seripta/). 
Species, 3: Antilope sylvatica Sparrman (type), A. strepsiceros Pallas, and A. seripta 
Pallas, from Africa. 
Tragelaphus: rpay £Aados, goat-stag, from rp«&yos,* goat; ZA«dos, deer, stag. 
Tragelaphus Oattpy, 1837. Ungulata, Artiodactyla, Bovidee. 
Proc. Zool. Soc. London, for 1836, No. xvi, 138, June 27, 1837; ScuaTER & 
THomas, Book of Antelopes, IV, 91, 1900 (in synonymy). 
Type: Tragelaphus hippelaphus Ogilby ( — Antilope picta Pallas, 1777—4. tragoca- 
melus Pallas, 1766), from northern India. 
Tragelaphus Ogilby is a distinct genus from Tragelaphus Blainville, 1816. (See 
Boselaphus Blainville, 1816. ) 
Tragocerus (subg. of Antilope) Gaupry, 1861. Ungulata, Artiodactyla, Bovide. 
Comptes Rendus, Paris, LII, No. 7, pp. 297-298, Jan.-June, 1861. 
Type: Tragocerus amaltheus Gaudry, from the Pliocene of Greece. At the end 
of the article a second species is described, Tragocerus valenciennesi Gaudry. 
Trogocerus Gaudry, l. c. (misprint). 
Extinct. *'Actuellement je possede dix-huit cranes dont la plupart ont leur 
partie postérieure parfaitement intacte et, en outre, deux tétes munies à la fois 
de leurs dents et des axes osseux de leur cornes." (GAuDRY.) 
Name preoccupied by Tragocera Billberg, 1820, a genus of Lepidoptera. 
Tragocerus: rp&yos, goat; Képas, horn. 
Tragomma Hopason, 1848. Ungulata, Artiodactyla, Bovide. 
Journ. Asiatic Soc. Bengal, X VII, pt. 11, new ser., No. 23, p. 486, Nov., 1848. 
New name for Tragops Hodgson, 1847, which is preoccupied by Tragops Wagler, 
1830, a genus of Reptilia. 
Tragomma: rp&yos, goat; Oma, eye 

from the large eyes. 

* In most cases roy os, goat, is used in the sense of antelope. 
