26 REVIEW OF AMERICAN BIRDS. [PART I. 
question to be decided hereafter. Mr, Sclater evidently refers to 
this intermediate form in P. Z. 8S. 1859, 370. 
| 
yall | 
Smith- Collec-| Sex When 
sonian, tor’s | and Locality. Received from Collected b 
No. Noy (raga, bs Collected. y 
| j— a 
22,351 140,790 | & Mexico. nae Wierbennr ine | 0 mee) tei 
22,357 |40,789 | .. i i i} aoe ES PY ieee ee 
18,564 We Ac Orizaba, Mex. ats Dr. Selater. Botteri. 
30,648 D2 te Duenas, Guat. 1860. Oo Salvins 4)" 4]) #8 vase ces 
“4 Sales Xalapa. Se Cab. Lawrence. D’Oca. 
Turdus grayi. 
? Merula tristis, Swatns. Philos. Mag. 1827, 369.—Turdus tristis, SCLATER, 
P. Z. 8. 1856, 294; 1859, 330. 
Turdus grayi, Box. P. Z. 8. 1837, 118.—Is. Conspectus, 1850, 272.— 
Scuater & Satyviy, Ibis, I, 1859, 5 (eggs).—Scuarer, Catal. 1861, 4, 
no. 22,—Casanis, Journ. for 1860, 323. 
2 Planesticus luridus, Bon. Comptes Rendus, XXXVIII, 1854, 4 (New 
Grenada). 
Turdus casius, Bon. Comptes Rendus, XLI, 1855, 657.—Turdus cexsius, 
Sctater, P. Z. S. 1859, 330.—Lawr. Ann. N. Y. Lyc. 1861, 326 
(Panama). 
Hab. Mexico (Xalapa, Cordova, Oaxaca); Guatemala (Vera Paz); Costa 
Rica. 
In a rather large series of specimens I find some differences in 
individuals, which, however, do not appear of specific value, espe- 
cially as the separation in one character does not correspond with that 
based on another; nor are there any appreciable geographical rela- 
tionships. The length of the wing, tarsus, and bill, as well as the color 
and width of the latter, vary in specimens from the same localities. 
In some the inner edges of the quills towards their bases are of the 
same light cinnamon as the inner coverts; this color sometimes 
sharply defined as a margin. In others, again, this is less distinct ; 
while m some these edges are only of a paler gray, with the faintest 
trace only of cinnamon, and no margin is traceable. 
In most specimens of this bird the edges of the inner webs of the 
quills towards the base are light cinnamon, like the axillars, forming 
a conspicuous and well defined edging. In No. 30,646, however 
(a female bird), this character is almost inappreciable. 
No. 30,559, from Acajutla, differs in being larger (length, 10.00 ; 
wing, 5.15; tail, 4.80; bill to nostril, .60; tarsus, 1.25). The colors 
are paler, upper parts more olive, and the inner edges of the quills 
