162 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. 



XASUA NARICA, (Liune) lUiger. 

 Mexican Coati. 



Le Coati-Mondi, Beisson, Eeg. Anim., 1756^ 262. 



Coati hrun, Buffon, Hist. Nat., viii, 1760, pi. xlviii, 



Viverra narica, Linn:^, Syst. Nat., i, 1766, 64. Based entirely on Biiftbn, as above. — 

 SCHPvEBEK, Saiigth., iii [1776?], j). 438, pi. csix (fig. from Btliou;. — Eexlebex, 

 Syst. Reg. Anim., 1777, 486. — Zimmekmaxn, Geogr. Geseh., ij, 1780, 291. — 

 Gmelin, Syst. Nat., i, 1788, 86. — Shaw, Gen. Zool., i, 1800, 385 (given as a 

 ''var. ?"). — Desmakest, Nouv. Diet. d'Hist. Nat., vii, 1317, 219. 

 Ursus narica, G. CuA^iER, Tabl. EMm. d'Hist. Nat., 1798, 113. 



? f JS^asua nocturna, Maximilian, Beitr. Naturges. Bras., ii, 1826, 298. 



JSfasua leiicorliynchus, vON Tschudi, Fauna Peruana, 1844-46, 100. — Feaxtzius, Ai'cb. 

 flir Naturg., 1869, 292.— DuGii;s, La Naturaleza, i, 1869, 137.— Hensel, Ab- 

 bandl. Konigl. Akad. Wissens. Berlin, 1872, (1873), 6.5. 



Nasua socialis yrt. fusca, Fischee, Synop. Mam., 1829, 149. 



JSfasua socialis var. irunea, Wagnee, Suj)pl. Scbreber's Siiugtb., ii, 1841, 16.5. 



Nasua socialis, De Saussuee, Zoologisclie Garten, Jahrg. iii, 1862, 53. 



Nasua solitaria var. mexicana, Weinlaxd, Zoologiscbe Garten, Jalirg. i. No. 11, Aug. 

 1860, 191, with a colored jilate from life. — De Saussuee, Zoologiscbe Garten, 

 Jabrg. iii. No. 2, Feb. 1862, 27 (babits), 54 (external cbaracters). 



Nasua solitaria, De Saussuee, Zoologiscbe Garten, Jabrg. iii, 1862, 54. 



Bassaricyon gahMi, Allen, Proc. Acad. Nat. Sci. Pbila., 1877, 267, pi. ii, animal (not 

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



ExTEENAL Chaeactees. — ]S[ose, edge of upper lip, a spot below the 

 eye, anotlier above tlie eye, and a small spot on tlie cheek, white 5 a white 

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

 with the white nasal area; rest of the facial i3ortion of the head black- 

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

 gular area over the shoulders, lighter brow^n, varying in different speci- 

 mens, however, from dark browm 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 ; in others, it is less well defined, and has a 

 more restricted extension posteriorly. The ears are broadly margined 

 with whitish, with long brown hair externally at the base, w'hichin 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 conspicuous in the 

 adults, and frequently specimens occur in which no traces of annulations 

 can be detected. They appear to be more i)rominent in very young speci- 

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

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



