560 INDEX GENERUM MAMMALIUM. 
Potamotragus Cray, 1872. Ungulata, Artiodactyla, Bovide. 
Cat. Ruminant Mamm. Brit. Mus., 25, 1872; ScrATER & THomas, Book of 
Antelopes, I, pt. rir, 121, 126, May, 1895 (in synonymy ). 
Type: Cephalophus melanoprymnus Gray (= Antilope sylvicultriz Afzelius), from 
the Gaboon, West Africa. 
Potamotragus: moray.os, river; ro&y os, goat. 
Potamys LanRANHAGA, 1823. l Glires, Octodontide. 
Bull. Sci. Soc. Philomatique, Paris, livr. June, 1823, 85; F. Cuvirr, Dents Mamm., 
184, 1823 (under ‘Myopotame’); Desmarest, Dict. Sci. Nat., XLIV, 491-492, 
1826 (under ‘Rat coypu’ ). 
Type: ‘Le Quyia’ or ‘Quouiya’ of Azara (Myopotamus coypus), from Argen- 
tina. (See Azana, Essais Hist. Nat. Quad. Paraguay, [I, 1-11, 1801.) 
Potamys: Contraction of MOTAMLOS, river; 0s, mouse. 
Potoroüs Dresmarest, 1804. Marsupialia, Macropodide. 
Nouv. Dict. Hist. Nat., XXIV, Tab. Méth. Mamm., p. 20, 1804; Mammalogie, 
I, 38, 271, 1820; THomas, Cat. Marsup. & Monotrem. Brit. Mus., 116-122, 1888. 
Potorus BuRgNETT, Quart. Journ. Sci., Lit. & Art, XXVIII, for Oct.-Dec., 1829, 
351, 1830. 
Type: Potoroüs murinus Desmarest (= Didelphis tridactyla Kerr), from Australia. 
Potoroüs: Potoroo, native name in New South Wales. (Dersmarest, Nouv. Dict., 
2e éd., XXVIII, 80, 1819.) 
Potos Cuvier & GEeorrnovy, 1795. Ferz, Procyonide. 
Méthode Mammalogique, in Mag. Fneyclopédique, 1* année, II, 187, 1795; G. 
Cuvier, Lecons Anat. Comp., I, table 1, 1800; Grorrroy, Cat. Mamm. Mus. 
National Hist. Nat., 90-91, 1803; Gravennorst, Vergleich. Uebers. Zool. Syst., 
474, 1807; Lrats, Climats, Géol., Faune et Géog. Botanique Brésil, 425, 1872; 
Pater, Proc. Biol. Soc. Wash., XI, 174, June 9, 1897 (name revived). 
Type: The ‘Kinkajou’ ( Viverra caudivolvula Schreber), from Surinam. 
Potos: Poto, native name in Jamaica (!), according to Buffon. ‘ Le kinkajou se 
trouve dans les montagnes de la Nouvelle Espagne, mais il se trouve aussi dans 
celles de la Jamaique, ot les naturels du pays le nomment Poto et non pas 
kinkajou." (Hist. Nat., Suppl. III, 251, 1776.) 
Potto Lesson, 1840. Primates, Lemuridze. 
Species Mamm., 207, 237-239, 1840; Nouv. Tabl. Régne Animal, Mamm., 10, 1842. 
Type: Potto bosmanii Lesson (—/Nycticebus potto Geoffroy), from Sierra Leone, 
West Africa. 
Name antedated by Perodicticus Bennett, 1832. 
Potto: Native name of this lemur in Guinea. (SHaw, Gen. Zool., I, 95, 1800.) 
Preeutatus (see Proeutatus). Edentata, Dasypodide. 
Preeuphractus (see Preeuphractus). Edentata, Dasypodide. 
Praopus (subgenus of Dasypus) BuRMEISTER, 1854. Edentata, Dasypodide. 
Syst. Uebersicht Thiere Brasiliens, I, Siugeth., 295-301, 1854; Reise durch La 
Plata-Staaten, II, 428, 1861; Anal. Mus. Püb. Buenos Aires, I, 231, 1864-69 
(raised to generic rank). 
Type: Dasypus longicaudus Maximilian, from Brazil. 
Praopus: 7 &os, soft, gentle; zovs, foot. 
Praotherium Corr, 1871. 3lires, Ochotonide. 
Proc. Am. Philos. Soc., XII, 93-94, fig. 20, Jan.-July, 1871; Journ. Acad. Nat. 
Sci. Phila., 2d ser., XI, pt. 2, pp. 209-210, 1899 (synonym of Lagomys). 
Type: Praotheriwum. palatinum. Cope, from the Pleistocene of the Port Kennedy 
Bone Cave, Montgomery County, Pennsylvania. 
