1870.] DR. 0. FINSCH ON THE BIRDS OF TRINIDAD. 585 
I may be allowed to append some remarks with respect to the syno- 
nymy of two Ramphastide. 
RAMPHASTOS PISCIVORUS, L. 
Ramphastos carinatus, Sw.; Scl. Cat. p. 324. 
From this well-known species are not separable R. brevicarinatus, 
Gould (Mon. ed. 2, t. 3), and R. approximans, Cab. (Journ. f. Orn. 
1862, p. 333), as already stated by Mr. Salvin (P. Z.S. 1867, p. 156). 
A careful comparison between specimens from Guatemala, Costa Rica, 
and New Granada has convinced me that Mr. Salvin is quite right, 
although Mr. Lawrence (Ann. L. N. H. N. Y. ix. p. 129) holds the 
contrary opinion. Our Guatemalan specimen has the yellow on the 
jugulum bordered very narrowly with red ; in the New-Granada one 
this red bordering is more defined, and in the Costa-Rican bird still 
broader. But this is by no means a specific character ; for the figure of 
Mr. Sturm, from a Mexican specimen, shows the red band still broader 
than those from Costa Rica. The measurements are also variable. 
Long. al. caud. culm. tars. 
hed 6" 5” 10’” Fit Qo” gam (Guatemala. ) 
7 0 3°45 42 22 (New Granada.) 
7 6 6 0 4 2 21 (Costa Rica.) 
8 6 6 9 5 9 22 (6, Mexico, ap. Sturm.) 
—_ _ 4°0 — (QQ, Mexico, ap. Sturm.) 
RAMPHASTOS AMBIGUUS, Sw.; Scl. Cat. p. 325. 
Our specimen from New Granada agrees in every respect with the 
description and beautiful figure by Mr. Sturm (Heft iv. t. 1. fig. inf.), 
taken from a male specimen from Peru (Tschudi). The separation 
of the New-Granada bird (R. abéreviatus, Cab. Journ. f. Orn. 1862, 
p- 334) has no grounds in my opinion. The purple-reddish tinge 
on the breast, noticed as the chief character for R. abbreviatus, is 
not visible in our specimen, and again occurs in Peruvian specimens, 
as stated by Mr. Sturm. 
Long. al. caud. culm. tars. 
Sedtt 5" 6? 6" 0" 24'" (New Granada.) 
8 10 — 6 3 — (Peru, ap. Sturm.) 
Dr. Cabanis gives the length of bill as only a little more than 43” ; 
but it may be remembered that in most of the members of the 
Ramphastide the length of bill varies considerably, especially with 
respect to the two sexes and the younger birds. 
The southern form of R. toco, which Dr. Cabanis named R. albo- 
gularis (J. f. Orn. 1862, p. 334), has been declared not specifically 
different by Von Pelzeln (Orn. Bras. iii. p. 233, note 2). 
Fam. Psirracipz. 
91. Conurus PERTINAX (L.); Finsch, Mon. i. p. 506. 
One specimen, in the plumage of C. chrysophrys, Sw., and agree- 
