HAPLOSPIZA.—AMPHISPIZA. 367 
of the description. It was contained in a collection transmitted to this country by 
Sefior R. Montes de Oca. 
It is allied to the Brazilian H. wnicolor, from which it differs in being larger, with 
a larger bill and longer wings and stronger feet. The general colour, too, is rather 
darker. 
AMPHISPIZA. 
Amphispiza, Coues, Birds N. W. p. 234 (1874). 
Dr. Coues proposed this name for the two North American species previously known 
as Poospiza bilineata and P. belli, Mr. Sclater having placed them in Poospiza in — 
1857. The type of the latter genus is P. nigro-rufa, a South American species, with 
which are associated some ten or eleven others, all of them (with the exception of 
P. bonapartii of Western Peru) from districts lying to the south of the basin of the 
Amazons, the metropolis of the genus being the upper La Plata region and the 
adjoining parts of Bolivia. 
From Poospiza, Amphispiza may be distinguished by the bill being somewhat stouter 
and the culmen towards the base-more tumid and less sharp; the sides of the maxilla 
are also rather more tumid, but the differences are not so great as might be expected 
from the wide difference of habitat. 
In this genus Mr. Ridgway has placed Zonotrichia quinquestriata, and we think 
rightly so, but we do not follow him in associating Zonotrichia mystacalis in the sa e 
genus, this bird being best placed in Hemophila together with H. humeralis to which 
it is evidently closely allied. Their very short rounded wings and long tails suggest 
this position for them. ; 
The bill of A. d¢/¢neata is of moderate dimensions, rather acute, the tomia of the 
maxilla is angular, the outer portion slightly concave; the nostrils are exposed. 
The wings are rounded, the 2nd, 3rd, 4th, and 5th quills nearly equal and longest ; 
tail slightly rounded, nearly equal to the wings; legs rather stout, the tarsus longer 
than the middle toe and claw. 
A, quinquestriata conforms to these characters, but is a rather larger bird with a 
more elongated bill. 
1. Amphispiza bilineata. 
Emberiza bilineata, Cassin, Pr. Ac. Phil. 1850, p. 104, t. 37. 
Poospiza bilineata, Scl. P.Z.S. 1857, p. 7°; Baird, U. 8S. Bound. Surv. ii. Birds, p. 15°; Baird, 
Brew., & Ridgw. N. Am. B. i. p. 590%. 
Amphispiza bilineata, Coues, Birds N. W. p. 284°; Key N. Am. B. ed. 2, p. 875°; Sennett, Bull. 
U.S. Geol. Surv. iv. p. 187; Belding, Pr. U. S. Nat. Mus. vi. p. 343°. 
Supra murinus fere unicolor, alis fusco-nigricantibus dorsi colore limbatis, cauda nigricante, rectricibus duabus 
utrinque externis albo terminatis, extima quoque in pogonio externo alba; superciliis elongatis, ciliis 
(pro parte), stria rictali pectoris, lateribus et abdomine toto albis; genis griscis, loris et gutture toto nigris, 
