TYPOTHERIUM—UINTATHERIUM. 699 
Typotherium Bnavanp, 1857. Ungulata, Typotheria, Typotheriidze, 
Comptes Rendus, Paris, XLIV, 961, Jan.-June, 1857; **Observations Géol. Bas- 
sin de La Plata, Buenos Aires, 1857;" ‘‘Cat. Espéces Anim. Foss. Amérique 
du Sud, Parana, 1860" (fide Gervais, Zool. et Paléont. Gén., I, 132, 134-137, 
1867). 
Species, 3: Typotherium protum Bravard, 1860; T. medium Bravard; T. minutum 
Bravard, from La Plata, Argentina. In 1857 the name is merely quoted by 
Serres under Mesotherium: ** Un genre nouveau, que nous proposons de nom- 
mer Mesotherium (désigné provisoirement par M. Bravard sous le nom de 
Typotherium).”’ 
Extinct. 
Typotherium: tv70s, type; Onptov, wild beast. 
Tyroptera (see Thyroptera). Chiroptera, Natalid:e. 
Tytthoconus Parwrn, 19038. Marsupialia, Dromatheriid:e. 
Science, new ser., XVII, 873, May 29, 1903. 
New name for Micronodon Osborn, 1886, which is preoccupied by Microconodus 
Traquair, 1877, a genus of Pisces. 
Tytthoconus: rvrüós, small; K@vos, cone—in allusion to the cones on the lower 
molars. (See Microconodon. ) 
IBI: 
Uacaria (see Ouakaria). Primates, Cebid:e. 
Udobzenus SuNDEVALL, 1860. Ferz, Pinnipedia, Odobenide. 
Ofvers. K. Vetensk. Akad. Fórhandl, Stockholm, XVI, No. 10, for Dec. 14, 
1859, 442 footnote, 1860. 
Emendation of Odobenus Rafinesque, 1815 (ex Linnzeus, 1735). 
“It might be best to take this name [Odobznus] as it is, although its meaning is 
not quite clear. The derivation is not given; but it may be from ddovs, 
-ovros, tooth; in which case the name should read Odontobenus, as proposed 
by Steenstrup, i. e. walking with the assistance of the teeth, which here 
seems to be correct;—or from 0606s, way, in which case it ought to read Hodo- 
benus (a sea animal which can also walk on a path);—or from ov6ds, field, 
earth, in which case it should be written Udobznus." (SuNDEVALL.) 
Uintacyon Lripy, 1873. Creodonta, Uintacyonide. 
Proc. Acad. Nat. Sci. Phila., for 1872, 277, Feb. 11, 1873; Hay, Cat. Foss. Vert. 
N. Am., Bull. 179, U. S. Geol. Surv., 759, 1902 (type fixed). 
Species: Uintacyon edax Leidy (type), and U. vorax Leidy, from the Eocene of 
Fort Bridger, Wyoming. 
Extinet. 
Uintacyon: Uinta, the Uinta Mountains; «ocv, dog—from the type locality. 
Uintamastix Lripv, 1872. Ungulata, Amblypoda, Uintatheriide. 
Proc. Acad. Nat. Sci. Phila., Aug. 1, 1872,* 169. 
Uintamastyx 'TRovEssART, Cat. Mamm., new ed., 717, 1898 (in synonymy). 
Type: Uintamastix atrox Leidy, from the Eocene deposits of Dry Creek Buttes, 
40 miles east of Fort Bridger, Wyoming. 
Extinct. Based on ‘the upper canine teeth.’ 
Uintamastix: Uinta, the Uinta Mountains; 4«&ó6r:£, whip—in allusion to the 
type locality. 
Uintatherium Lripy, 1872. Ungulata, Amblypoda, Uintatheriid:e. 
Proc. Acad. Nat. Sci. Phila., 1872, 168-169; Mansu, Mon. U. S. Geol. Surv., 
X, Dinocerata, App., 219-222, 225, numerous text figs., 1886. 
Type: Uintatherium robustum Leidy, from the Eocene of Dry Creek Buttes, 40 
miles east of Fort Bridger, Wyoming. 


* For date of publication, see Marsh, Mon. U. 8. Geol. Surv., X, Dinocerata, 225, 
1886. 
