670 INDEX GENERUM MAMMALIUM. 
Tetraclenodon—Continued. 
Type: Miocleenus floverianus Cope (= Phenacodus puercensis Cope—fide MarruEew), 
from the Puerco Eocene of New Mexico. 
Extinct. 
Tetraclenodon: tetpa-, four; 4- Clanodon. 
Tetraconodon FArcowxER, 1868. Ungulata, Artiodactyla, Suide. 
Paleeont. Memoirs, I, 149-156, fig. 5 in text, 1868. 
Type: Tetraconodon magnum Falconer, from ‘the Tertiary hills between the 
Murkunda Pass and Pinjore,’’ India. 
Extinct. Based on ‘a portion of the right side of the upper jaw, containing 
the two posterior molars.’ 
Tetraconodon: r&rpa-, four; K@vos, cone; 66@v=ddovs, tooth. 
Tetracus Aymarp 1850. Insectivora, Erinaceide. 
Ann. Soe. Agr. Sci., Arts et Comm. du Puy, XIV, pp. 105, 81, 82 footnote, 1850; 
Congrés Sei. France for 1855, I, 232, 1856; PowEr. Cat. Méth. Vert. Foss. 
Bassin de la Loire, 16, 1854; Gervais, Zool. et Paléont. Frangaises, 2° éd., 53-54, 
1859. 
Type: Tetracus nanus (.Erinaceus nanus Aymard), from the Miocene of Velay, 
near Puy, Dépt. Haute-Loire, France. 
Extinct. Species originally based on a fragment of a mandible with two premo- 
lars and three molars. 
Tetracus: rerpa-, four; dn, point. 
Tetralophodon (subg. of Mastodon) FALcoxEn, 1857. Ungulata, Elephantidee. 
Quart. Journ. Geol. Soc. London, XIII, pt. 4, pp. 312-314, 316-317, synopt. table, 
plssexretios lS 2 xTI SNOVeUIS S LS97- 
Species 6, from the Miocene and Pliocene: Mastodon longirostris Kaup, from 
Eppelsheim, Germany; M. arvernensis Croizet & Jobert, from France; M. andiwm 
Cuvier, from South America; M. sivalensis Cautley, from the Siwalik Hills, 
India; M. perimensis Falconer & Cautley, from Perim Island, India; and M. 
latidens (Clift), from Ava, southern India. 
Extinct. 
Tetralophodon: tetpa-, four; Ad@os, crest, ridge; 66@v=d6o0vs, tooth—in allu- 
sion to the four transverse crests on the third premolar and the firsteand 
second molars. 
Tetramerodon (subg. of Arvicola) RnoAps, 1894. Glires, Muridze, Microtinee. 
Proc. Acad. Nat. Sci. Phila., Oct. —, 1894, 282-283; MiannER, N. Am. Fauna No. 
- 12, pp. 18-19, 62, July 23, 1896 (in synonymy). 
Tetramesodon Lv DEKKER, Zool. Record for 1894, XXXI, Mamm., 33, Index New 
Genera, 14, 1895 (misprint). 
Type: Arvicola ( Tetramerodon) tetramerus Rhoads, from Beacon Hill Park, Vic- 
toria, British Columbia. 
Tetramerodon: tetpaepns, four parted; 08v —0980vzc, tooth—from the middle 
upper molar, which lacks a postero-internal triangular loop, and is ‘‘ composed 
of an anterior loop, a closed antero-exterior triangle, a closed median inner 
triangle, and a postero-exterior triangle." 
Tetramerorhinus AMEGHINO, 1894. Ungulata, Litopterna, Proterotheriid:e. 
Enum. Syn. Mamm. Foss. Form. Éocénes de Patagonie, 39-40, Feb., 1894. 
Species: Tetramerorhinus fortis Ameghino, and T. lucarius Ameghino, from the 
Eocene of Patagonia. 
Extinct. 
Tetramerorhinus: tetpaytepns, four parted; pis Aiv ds, nose. 
Tetramesodon (see Tetramerodon). Glires, Murid:e Microtine. 
Tetraproctodon (see Tetraprotodon). Ungulata, Artiodactyla, Hippopotamide. 
