102 INDEX GENERUM MAMMALIUM. 
Anchippus—Continued. 
Anchippus: Anchi(therium) ; 1x05, horse—‘‘an animal of intermediate character 
to Anchitherium and Equus."  (LEtpy. ) 
Anchisodon Corr, 1879. Ungulata, Perissodactyla, Hyracodontide. 
Am. Nat., XIII, No. 4, for April, 270, published Mar. 26, 1879; Bull. U. S. Geol. 
and Geog. Surv. Terr., V, 233, 1879 (daté of publication ). 
Anchirodon FonBEs, Zool. Record for 1879, XVI, Mamm., 19, 1881 (misprint). 
Type: Hyracodon quadriplicatus Cope, from the Oligocene (White River beds) of 
Colorado. 
Extinct. ‘‘ Represented by maxillary teeth only.’ 
Anchisodon: &y yi, near; 760s, equal; 086v —080vsc, tooth—in allusion to the 
? 
lower premolars and molars. 
Anchistrum AwEaniNo, 1901. Ungulata, Hyracoidea (Acoelodidz). 
Bol. Acad. Nac. Cien. Córdoba, XVI, 369-370, July, 1901 (sep., pp. 23-24). 
Type: Anchistrum sulcosum Ameghino, from the ‘Cretaceous’ of Patagonia. 
Extinct. 
Anchitheriomys Rocrsr, 1898. Glires, Hystricidee. 
Bericht Naturwiss. Ver. Schwaben u. Neuburg (a. V.), XXXIII, 7-8, Taf. 31, 
figs. 9-10, 1898. 
Type: Hystrix wiedemanni Roger, from Breitenbronn and Kutzenhausen, Reische- 
nau, Susamthal, Swabia, Germany. 
Extinct. Based on parts.of upper incisors. 
Anchitheriomys: Anchitherium; 0s, mouse—in allusion to its occurrence in beds 
characterized by the presence of remains of Anchitherium. 
Anchitherium Meyer, 1844. Ungulata, Perissodactyla, Equidee. 
Neues Jahrb. Mineralogie, 1844, 298-305. 
Type: Anchitherium ezquerre Meyer, from the Miocene of el Cerro de San Isidro, 
near Madrid, Spain. 
Extinct. 
Anchitherium: &y yi, near; §npiov, wild beast—in allusion to its supposed rela- 
tionship with Rhinoceros, Anoplotherium and Palaeotherium. 
Ancodon (subgenus of Palxotherium) PowEL, 1847. Ungulata, Anthracotheriidee. 
Archiv. Sci. Phys. et Nat., Bibl. Univ. Genéve, V, 207, June, 1847. 
Ancodus PowEL, ibid., VIII, 324—325, Aug., 1848 (raised to generic rank); Cat. 
Méth. Vert. Foss. Bassin de la Loire, 91-95, 1854. 
Amodus PowEL, Comptes Rendus, Paris, XXVI, No. 25, p. 687, Jan.-June, 1848 
(misprint). 
Type: Anthracotherium velaunum G. Cuvier, from the Miocene of Ronzon, near 
Puy, France. 
Name antedated by Bothriodon Aymard, 1846. 
Extinct. 
Ancodon: dy Gv, bend; 66@v=06o0vs, tooth—probably from the selenodont 
character of the upper molars. 
Ancylocoelus AmeEGHINO, 1895. Ungulata, Ancylopoda, Leontiniidee. 
Bol. Inst. Geog. Argentino, X V, 650-652, 1895 (sep., pp. 50-52). 
Type: Ancylocoelus frequens Ameghino, from the Pyrotherium beds of Patagonia. 
Extinct. 
Ancylocoelus: &yKUvAos, curved; xozAos, hollow. 
Ancylodon [LiicEr, 1811. Cete, Physeteridze. 
Prodromus Syst. Mamm. et Avium, 142, 1811; Oxen, Lehrb. Naturgesch., 3ter 
Theil, Zool., 2te Abth., 673-674, 1816; Gray, Cat. Seals & Whales Brit. Mus., 
330, 1866 (in synonymy ). 
