MAMMALS OF THE MEXICAN BOUNDARY. 175 



ODOCOILEUS COUESI ( Coues and Yarrow). 

 SONORA WHITE-TAILED DEER. 



Ccrni-s nic.iica)iii!<. Kaiku. Mam. N. Am., 1857, pp. (!").">-( I-V), jtl. xxiv. fig. 2 



(feet). (Excluding synonyms; not of (Jmelin.) 

 Cariacus virrjiniaiiiis var.. Coues and Yarrow, Wheeler Sui-v., V. Zool.. IST.j, 



p. 72. 

 "Vufiovuii cirgiiiiaiius var. coucsi. Rothkock MSS." Coues and Yarrow, 



Wheeler Surv.. V, Zool., 1875. p. 72. and. i)y implication in text. p. 7."). 

 Dorcclaphus couesU Allen, Bull. Am. Mus. Xat. Hist. VII. Art. VI, June 2!). 



1S!>."). pp. 200, 201 (establishes the species and gives a diagnosis based 



on six specimens from the Santa Cruz Mountains. Sonora, Mexico, 



killed in February). 

 OdocoilcKS couesi, Thompson (i. e., Seton). Forest and Stream, LI, Oct. 8, 



1S!)8, p. 286. Miller and Rehn. Proc. Bost. Soc. N. II., XXX, Xo. 1, 



Dec. 27, 1901, p. 15 (Syst. Results Study N. Am. Mam. to close of I'.mmk. 

 [Odocoileiis americanus] couesi. Elliot, Field Col. Mus., Zool. Ser.. II. 



11»01, p. 40 (Synop. Mam. N. Am.). 

 [0(loiitoc(fhis] americantis couesi, Elliot. Field Col. Mus., Zool. Ser., IV, 



Pt. 1. 1904, p, 70, fig. xxiii (Mam Mid. Am.). 



Tijpe-locallt]i. — Camp Crittenden, Pima County, Arizona. 



Geof/ni pineal ramje. — Southwestern New Mexico, southern Ari- 

 zona (chiefly south of the Gihi River), and southward in Chihuahua 

 and Sonora, Mexico. Its vertical range extends from near sea level 

 to the boreal summits of the highest mountain ranges of the region. 



Deserij)tion.—X male (No. Bflf, U.S.N.M.), killed by Mr. Holz- 

 ner in the Patagonia Mountains, November 27, 1892, and a female 

 (No. I4III, U.S.N.M.) from the Pajaritos Mountains, near Nogales, 

 December 21, 1892, are in complete Avinter pelage. The color above 

 is brownish gray, much j^aler than in Odocoileus arnericamis. The 

 hair is fine for a deer, and nearly straight ; drab-gray at base, darker 

 on the terminal portion, which is finely ringed with white and 

 pointed Avith black, which gives the usual j^epper-and-salt mixture 

 of color common to most species of Odocoileus in winter pelage. 

 There is a dark, brownish, vertebral area extending backward from 

 the crown, most intense on the upper side of the neck; and low down 

 on the sides the color becomes pale drab-gray, stained below with 

 yellowish brown, which becomes most intense around the axilUe and 

 posterior border of the thighs, which are edged with .wood brown. 

 The abdominal and inguinal regions, together with the hollows of 

 the thighs and axillse, are white. Chest brownish drab-gray. 



The tail in this deer (fig. 10) is broad, full, and foxy, being hairy 

 below almost or quite to the base, and entirely white on the under 

 surface. The white of the underside shows as a border to the colored 

 upper surface, which is dull cinnamon, the outermost colored hairs 

 being pointed with black, giving definition to the pattern. Where 



