]20 FRINGIUJD.E. 



under wing-coverts and axillaries whitish, washed with pale olive ; 

 quills below dusky, edged with ashy, whitish towards the base. 

 Total length 4-25 inches, culmen 0-4, wing 1-95, tail 1*7, tarsus 

 0-6. 



Hob. Mexico. 



a, b 6 2 ad. sk. Mexico. Sclater Coll. 



c cJ imm. sk. Silao, Mexico. Sclater Coll. 



d 9 ad sk. Mazatlan, Dec. 8 (A. Forrer). Salvin-Godman Coll. 



e S ad. sk. Mazatlan, Jan. 4 {A. Forrer). Salvin-Godman Coll. 



f. <S ad. sk. Presidio, Mexico, Dec. 22 Salvin-Godman Coll. 



(A. Forrer). 



g. S ad. st. Mexico. Purchased. 



24. Spermophila albitorquis. 



Adult male. Similar to S. torqueola, but distinguished by a white 

 collar round the hind neck. Total length 4-4 inches, culmen 0-35, 

 wing 2-25, tail 1*85, tarsus - 6. 



Hob. Mexico. 



a. S ad. sk. Mexico. Sclater Coll. 



b S ad sk Capulalpam, S. Mexico, Oct. Salvin-Godman Coll. 



1860 (A. Salle). 



25. Spermophila ophthalmica. 



Spermophila ophthalmica, Sclater, P. Z. S. 1860, pp. 276, 293 ; id. 



Cat. Amer. B. p. 103 (1802); id. Ibis, 1871, p. 11 ; id. fy Salv. 



Nomencl. Av. Neotr. p. 28 (1873) ; Berlepsch § Tacz. P. Z. S. 



1883, p. 550 ; Tacz. fy Berlepsch, P. Z. S. 1884, p. 84. 

 Gyrinorkynchus ophthalmicus, Gray, Hand-l. B. ii. p. 106, no. 7599 



(1870). 



Adult male (type of species). General colour above glossy black, 

 the lower back aud rump whiter, but mottled with black and grey, 

 the bases of the feathers being grey, the tips pure white with a sub- 

 terminal bar of black ; lesser wing-coverts black, edged with white, 

 the median aud greater coverts black, the latter with a linear streak 

 of white at the ends ; bastard- wing, primary- coverts, aud quills 

 black, with a white base, concealed on all but the middle pri- 

 maries, which have the base of the outer web white so as to form an 

 alar speculum ; upper tail-coverts aud tail-feathers black ; crown of 

 head, lores, sides of face, and ear-coverts black, with a tiny spot of 

 white below the eye : cheeks, throat, and sides of neck white : fore 

 neck crossed by a black band, widening out on the sides of the chest ; 

 breast and abdomen white, as well as the sides of body aud flanks, 

 the latter slightly mottled with black bases to the feathers ; thighs, 

 under tail-coverts, under wing-coverts, and axillaries white, with a 

 small patch of black near the edge of the wing; quills below 

 blackish, the inner edge white, increasing towards the base. Total 

 length 4 inches, culmen 0-4, wing 2-25, tail 1-65, tarsus 0-6. 



