680 INDEX GENERUM MAMMALIUM. 
Tigris Fniscu, 1775. ; Ferve, Felidze. 
Das Natur-System vierfüss. Thiere, in Tabellen, 15, Tab. Gen., 1775; OKEN, 
Lehrbuch Naturgesch., 3ter Theil, Zool., 2te Abth., 1066-1070, 1816; Gray, List 
Spec. Mamm. Brit. Mus., pp. xix, 40, 1843 (Felis tigris only); GEorFROoY, Jacque- 
mont's Voyage l'Inde, IV, Zool. Mamm., pp. 37-88, 40-44, 1844. 
Type: Tigris vera Frisch (= Felis tigris Linnzeus) from southern Asia. Oken's 
genus includes 7 species: Tigris minima Oken (= Felis bengalensis Kerr), T. 
europea Oken ( — Felis catus Linnzeus), Felis.japanica, F. guttata Hermann, and 
F. pantherina Oken, from Eurasia; Tigris cajennen Oken ( — F. tigrina Gmelin), 
from South America; and T. maxima Oken (= Felis tigris Linnzeus, type), from 
Asia. 
Tigris: riy pic, tiger. 
Tillomys Mansu, 1872. Glires, Ischyromyide. 
Am. Journ. Sci. & Arts, 3d ser., IV, 219, Sept. 1872 (sep. issued Aug. 17); Hav, 
Cat. Foss. Vert. N. Am., Bull. 179, U. S. Geol. Surv., 724, 1902 (type fixed). 
Species: T'illoinys senex Marsh (type), from the Eocene of Henry Fork of Green 
River; and 7. parvus Marsh, from the Eocene of Grizzly Buttes, Wyoming. 
Extinct. 
Tillomys: ríAÀc, to tear; 40s, mouse. 
Tillotherium Marsn, 1873. Tillodontia, Anchippodontidee. 
Am. Journ. Sci. & Arts, 3d ser., V, 485-486, June, 1873. 
Type: Tillotherium hydracoides Marsh, from the Eocene of Wyoming. 
Extinct. E 
Tillotherium: ríÀAÀco, to tear; Syptorv, wild beast—in allusion to the strong chisel- 
shaped incisors. 
[ Tinnunculus Linnxus, 1769. Aves. 
Amoen. Acad., VII, 450, 1769; SngnBORN, Index Animalium, 979, 1902. 
Tinnunculus is erroneously given by Sherporn as a genus of mammals, without 
indication of any species. As used by Linn:eus, Tinnunculus fuliginosus is 
evidently applied to a bird, but is merely a nomen nudum occurring in a list 
of the mammals and birds in the St. Petersburg Museum. 
Tinnunculus: Lat., kestrel. ] 
Tinoceras Marsn, 1872. Ungulata, Amblypoda, Uintatheriidee. 
Am. Journ. Sci. & Arts, 3d ser., IV, 504, errata, Aug. 19, 1872; ibid, IV, for 
Oct., 322, Aug. 24, 1872; 323, Sept. 21;* Mon. U.S. Geol. Surv., X, Dinocerata, 
App., 202-218, pls. xv-xix, Lv1, numerous text figs., 1886. 
Type: Titanotheriam? anceps Marsh, from the Dinoceras beds of the Eocene on 
the divide near Sage Creek, 15 miles southeast of Fort Bridger, Wyoming. 
Extinct. Based on ‘portions of the skull, cervical and dorsal vertebr:e, and a tibia.’ 
Tinoceras: rírc, to punish, to avenge; Képas, horn. 
Tinodon Mansu, 1879. Marsupialia, Triconodontid:e. 
Am. Journ. Sci. & Arts, 3d ser., XVIII, 215-216, 1 fig. in text, Sept., 1879. 
Type: Tinodon bellus Marsh, from the Jurassic ( Atlantosaurus beds) of Wyoming. 
Extinct. Based on a lower jaw. 
Tinodon: tive, to punish, to avenge; 66@v=ddovs, tooth—in allusion to the 
three-pointed molars. 
Tinotherium (see Thinotherium). Ungulata, Artiodactyla, Helohyid:e. 
Titanomys Meyer, 1843. Glires, Ochotonide, 
Neues Jahrbuch Mineralogie, 1843, 390; Forsyra Mason, Trans. Linn. Soc. Lon- 
don, 2d ser., Zool., VII, pt. 9, pp. 486-449, pls. 36-39, several figs., Nov., 1899. ° 
Type: Titanomys visenoviensis Meyer, from the Miocene of Weisenau, Germany. 
Extinct. Based on ‘Uberreste, welche wenigstens sechs Individuen angehóren, 
worunter Fragmente aus dem Ober- und Unterkiefer.’ 
Titanomys: Tir&v, Titan; wos, mouse. 
* For dates of publication see Marsu, Mon. U. 8. Geol. Surv., X, 226, 1886; Cork, 
Am. Nat., May, 1873, and Palont. Bull., No. 13, p. 7. 

