162 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



XASUA XABICA, (Liime) Illiger. 



x 



MEXICAN Co ATI. 



Lc Coati-Moncli, BRISSOX, Reg. Anim., 1756, 262. 

 Coati brun, BUFFOX, Hist. Nat., viii, 1760, pi. xlvyi. 



Harm narica, LIXXE, Syst. Nat., i, 4 176G, 64. Based entirely on Bufifon, as above. 

 SCHREBER, Siiugth., iii [1776?], p. 438, pi. cxix (fig. from Button;. ERXLEBEX, 

 Syst. Reg. Anim., 1777, 486. ZIMMERMAXX, Geogr. Gesch., ii, 1780, 291. 

 GMELIX, Syst. Nat., i, 1788, 88. SHAW, Gen. ZoSL, i, 1800, 385 (given as a 

 "var.?")- DESMAREST, Nouv. Diet. d'Hist. Nat., vii, 1817, 219. 

 Ursns narica, G. CUVIER, Tabl. Elem. d'Hist. Nat., 1798, 113. 



:' / ^as-ua nocturna, MAXIMILIAN, Beitr. Naturges. Bras., ii, 1826, 298. 



Xasua Icncorlnjnclnis, vox TSCHUDI, Fauna Peruana, 1844-46, 100. FRAXTZIUS, Arch, 

 fur Naturg., 1869, 292. DUGES, La Naturaleza, i, 1869, 137. HEXSEL, Ab- 

 liandl. Konigl. Akad. Wissens. Berlin, 1872, (1873), 65. 



Xasua socialis var. fusca, FISCHER, Synop. Mam., 1829, 149. 



Xasua socialis var. brunea, WAGXER, Suppl. Schreber's Saugth., ii, 1841, 165. 



Xasua socialis, DE SAUSSURE, Zoologisclie Garten, Jahrg. iii, 1862, 53. 



Xasna solitaria var. mexicana, WEIXLAXD, Zoologische Garten, Jalirg. i, No. 11, Aug. 

 1860, 191, with a colored plate from life. DE SAUSSURE, Zoologische Garten, 

 Jahrg. iii, No. 2, Feb. 1862, 27 (habits), 54 (external characters). 



jy8M. solitaria, DE SAUSSURE, Zoologische Garten, Jahrg. iii, 1862, 54. 



Bassaricijon gabbii, ALLEX, Proc. Acad. Nat. Sci. Phila., 1877, 267, pi. ii, animal (not 

 Bassaricyon gabbii, Allen, ibid., 1876, 20, pi. i, skull). 



EXTERNAL CHARACTERS. Xose, edge of upper lip, a spot below the 

 eye, another above the eye, and a small spot on the cheek, white; a white 

 line, more or less distinct, usually connects the white spot above the eye 

 with the white nasal area; rest of the facial portion of the head black- 

 ish-brown ; forehead, sides and top of the head, hind neck, and a trian- 

 gular area over the shoulders, lighter brown, varying in different speci- 

 mens, however, from dark brown to yellowish-brown, or even deep golden. 

 In many specimens this more or less fulvous area has well-defined out- 

 lines, and terminates posteriorly in a triangular extension reaching nearly 

 to the middle of the back 5 in others, it is less well defined, and has a 

 more restricted extension posteriorly. The ears are broadly margined 

 Avith whitish, with long brown hair externally at the base, Avhich in win- 

 ter pelage forms overhanging tufts that nearly cover the ears. The gen- 

 eral color of the rest of the dorsal surface is dark brown, becoming darker 

 posteriorly, and varying in different specimens from fulvous to blackish- 

 brown, with the tips of the long hairs lighter and lustrous, varying in dif- 

 ferent specimens from nut-brown through fulvous to pale yellowish-white 

 or silvery. The color of the tail is nearly uniform with that of the hind por- 

 tion of the back, with the distal third darker or blackish. Faint annula- 

 tions are often observable, on close inspection^ particularly on the basal two- 

 thirds of the lower surface, but they are apparently never con spicuous in the 

 adults, and frequently specimens occur in w : hich no traces of annulations 

 can be detected. They appear to be more prominent in very young speci- 

 mens than in those that are full grown, and to become obsolete in old age. 

 They are, however, sometimes entirely absent in the young. Sides of the 



