( 332 ) 
Characters. This well-characterized form differs from the preceding one by its 
longer bill; more heavily as well as more regularly striped throat ; darker, nearly 
blackish crown ; considerably darker, olive-brown ground-colour of the back and 
lower parts ; and deeper, chestnut-rufous wings and tail. Bill clear red. 
Wing. Tail. Bill. 
Three males from the Orinoco. ‘ : . 99—102 88—92 70—76 mm. 
One imm. female from the Orinoco . . . 292 90 68 is 
One adult from Remedios . ; : P = ae 94 — ‘5 
Five adults from Bogoté . . . «~~ - «90-98 = 8090 64—73 ,, 
One young male from Rio Amajai ‘ « 90 83 62 ‘s 
Obs. Colombian birds agree well with those from Venezuela, except that the 
brown of the under parts is, as a rule, slightly darker, and the rufous of wings and 
tail rather deeper. These trifling differences, however, should be confirmed by a 
larger series. Panama specimens I have not seen, but according to Mr. Chapman 
they are referable to the present race. The single young bird from the Rio Amajau 
is much more rufous brown on the lower parts than any other specimen in hand, 
though in other respects it agrees perfectly with venezuelensis. Its bill is 
apparently not full-grown. 
(c) C. trochilirostris procurvoides (Lafr.). 
Hab. French Guiana: Cayenne (Lafr.), Ipousin, Rio Approuague (Cherrie). 
British Guiana : Bartica Grove, Camacusa, River Carimang (Whitely), Mazaruni 
River (Quelch), ete. North Brazil: Borba, Rio Madeira (Natterer, Hoffmanns). 
Characters. Above deep “ raw umber” (Ridgw. iii. 14), crown and nape with 
very narrow, buff shaft-lines or small elongated spots; back either wholly 
immaculate or with a few hair-like, buff lines on the uppermost portion ; rufous of 
rump, wings, and tail even deeper than in venezuelensis. Throat strongly varied 
with deep brown ; remainder of lower parts dark raw umber ; foreneck and breast 
with narrow, buff shaft-streaks, not or slightly edged laterally with dusky. Bill 
considerably darker red than in (a) and (4). 
Wing. _—‘Tail. Bill. 
One female, Ipousin, Cayenne : . <8 84 60 mm. 
Four adults, British Guiana . , ‘ ‘ . 92—94 88 61—64 ..,, 
One adult male, Borba . | ‘ , ; ~ 92 84 61 ef 
Two adult females, Borba. ; : ‘ . 92,94 86,92 60,62. 4, 
One young male, Borba : : : ‘ . 88 84 52 
” 
Obs. This strongly characterized race cannot be confused with any other. 
Its deep brown coloration, with the pale markings much restricted, and the dark 
red bill distinguish it at a glance. Judging from the variation shown by the series 
from British Guiana, I should say that X. dorsoimmaculatus Chapm.* is not 
separable from C. ¢. procurvoides.- 
(d) C. trochilirostris thoracicus (Scl.). 
eer ie thoracicus Sclater, Proc. Zool. Soc. Lond. 1860. p. 277 (1860.—Babahoyo, 8.W. 
cuador),. 
Hab. Western Ecuador : Babahoyo, Esmeralda (Fraser), Chimbo (Siemiradzki), 
Yaguachi (Stolzmann), 8. Javier, Paramba, Pambilir (Miketta & Flemming). 
N.W. Peru: Lechugal (Jelski). 
* Bull. Amer, Mus. N. Y. ii. p. 159 (1889. ~Cayenne 2), 
