372 INDEX GENERUM MAMMALIUM. 
Li 
Leptodon Gaupry, 1860. Ungulata, Perissodactyla, Titanotheriid:e. 
Comptes Rendus, Paris, LI, No. 24, pp. 927-929, July-Dec., 1860. 
Type: Leptodon grecus Gaudry, 1862, from the lower Pliocene, Pikermi beds, of 
Greece. 
Name preoccupied by Leptodon Sundevall, 1835, a genus of Birds. 
Extinct. Based on a jaw. 1 
Leptodon: Aezrós, slender, narrow; óó cv —óó0vs, tooth— pour indiquer que, 
proportionnément à leur longueur, les dents étaient extrémement étroites."' 
(GAUDRY. ) 
Leptomanis Fiinor, 1893. ud Manidee. 
Ann. Sci. Nat., Zool. et Paléont., Paris, 7? sér., XVI, Nos. 1-3, pp. 134-135, 
fig. 4, Dec. 15, 1893. 
Type: Leptomanis edwardsi Filhol, from the Phosphorites of Quercy, near Lar 
nagol, France. 
Extinct. Based on ‘‘ toute la partie aatcnietne du crane et les os nasaux." 
Leptomanis: Aeros, small, slender; +- Manis. 
ae Leipy, 1853. Ungulata, Artiodactyla, Agriochceridee. 
Proc. Acad. Nat. Sci. Phila., for 1852-53, p. 394, 1853. 
Type: Leptomeryx evansi Leidy, from the Miocene of the Bad Lands of Nebraska. 
Extinct. Based on ‘‘a cranium which has lost the nose, and is broken at the 
parietal region." 
Leptomeryx: ÀAezrós, small, slender; s7evé, ruminant. 
Leptomylus Corr, 1869. Glires, Castoroidid:ze. 
Proc. Am. Philos. Soc., XI, 192, expl. pl. v, figs. 2, 3, 1869. 
Probably a misprint for Loxomylus, which is the name used in the text (p. 186), 
and on plate v. Leptomylus was used by Cope a im months previous for a 
genus of Pisces (Proc. Boston Soc. Nat. Hist., XII, 513, Apr., 1869). 
Extinct. 
Leptomylus: Aewros, small, slender; “vdAos, molar. 
Leptomys THomas, 1897. Glires, Murid:e, Hydromyine. 
Ann. Mus. Civ. Storia Nat. Genova, ser. 2^, XVIII, 610-611, Dec. 14, 1897. 
Type: Leptomys elegans Thomas, from British New Guinea, exact locality unknown. 
Leptomys: Aezrós, small, slender; “0s, mouse. 
Leptonychotes Girr, 1872. Fere, Pinnipedia, Phocidze. 
Arrangement, Fam. Mamm. (Smithson. Mise. Coll, No. 230), 70, Nov., 1872; 
ALLEN, Hist. N. Am. Pinnipeds, 463, 467, 1880; TurNER, Rept. Voy. H. M. S. 
e Ballons re Zool., XXVI, pt. nxvri, 20, 64-65, 1888. 
New name for Leptonyx Gray, 1837, which is preoccupied by Leptonyx Swainson, 
1821, a genus of Birds. 
Leptonychotes: Aezrós, small, slender; 6vvé, óvvyosc, claw; --suffix-oz7c, denoting 
possession—in allusion to the rudimentary claws of the hind feet. 
Leptonycteris LvpEkKER, 1891. Chiroptera, Phyllostomatidze. 
LvpEKKER, in Flower & Lydekker's Mamm., Living & Extinct, 674, 1891. 
New name for /schnoglossa De Saussure, 1860, which is preoccupied by Ischno- 
glossa Kraatz, 1856, a genus of Coleoptera. 
Leptonycteris: Aezróc, small, slender; rvxrepís, bat. 
Leptonyx Gray, 1837. Ferve, Pinnipedia, Phocide. 
Charlesworth’s Mag. Nat. Hist., I, 582, Nov., 1837; ALLEN, Hist. N. Am. Pinni- 
peds, 467, 1880 (in synonymy). 
Type: Leptonyx weddellii (Lesson), from the Antarctic Ocean. 
Name preoccupied by Leptonyx Swainson, 1821, a genus of Birds. Replaced by 
Leptonychotes Gill, 1872; and by Pecilophoca Lydekker, 1891. 
Leptonyx: Aexros, small, slender; 6vvé, claw—on account of the rudimentary 
claws on the hind feet. 
