142 COTINGIDA. 
tropical America. Thus, in South-eastern Brazil we find C. nudicollis, in Guiana 
C. niveus, and in the western portion of that country, together with Venezuela and 
Trinidad, C. variegatus is found; in our country C. tricarwnculatus occurs in Costa 
Rica and the adjoining State of Panama. It thus appears that Chasmorhynchus is 
unrepresented in Colombia, in all of the countries traversed by the Andes, and in 
the valley of the Amazons. The latter fact is not so surprising, as all the species 
appear to affect the mountain forests of some elevation. 
The genus Chasmorhynchus has no near allies, so much so that its position in the 
family is by no means satisfactorily settled; there are even points in its structure, such 
as the absence of a bifurcation to the manubrium of the sternum, which have caused 
its position in the Passeres to be questioned. . | 
Mr. Sclater places Chasmorhynchus in his subfamily of Gymnoderine, that is 
Cotingide of large form with “corvine bills.” The bill conforms more strictly to the 
cotingine series, and the absence of rictal bristles also suggests the same position. 
The forehead, the chin, and the portions of the face surrounding the bill and eyes of 
C. tricarunculatus are destitute of feathers. A long caruncle proceeds from the forehead 
and one from the rictus on either side; the nostrils are open and situated at the end of 
the nasal fossa; the culmen is moderately and regularly curved, and there is a distinct 
subterminal notch towards the end of the tomia of the maxilla. ‘The wings are with- 
out special features, the third primary is slightly the longest, the second, fourth, and 
fifth being a little shorter, the first=seventh; the tail is nearly even; the tarsi are 
short, the inner and outer toes equal, the latter more united to the middle toe than 
the former. 
1. Chasmorhynchus tricarunculatus. 
Chasmorhynchus tricarunculatus, J. & E. Verr. Rev. Zool. 18538, p. 193°; Cab. J. f. Orn. 1861, 
p. 253°; Salv. Ibis, 1865, p. 92, t. 3°; P. Z.S. 1867, p. 150*; 1870, p. 200°; Sel. Ibis, 
1866, pp. 406°, 407"; Lawr. Ann. Lyc. N. Y. ix. p.117°; Frantz. J. f. Orn. 1869, p. 310°; 
Ridgw. Pr. U. 8S. Nat. Mus. v. p. 496°". 
Castaneus ; capite toto et cervice usque ad pectus niveis ; loris nudis, setis nigris sparsim vestitis; carunculis 
tribus elongatis ornatus—una frontali, duabus rictalibus: rostro et pedibus nigris. Long. tota 11-0, 
alee 6°5, caudee 4°1, rostri a rictu 1°5, tarsi 1-1. 
9 olivacea ; alis et cauda introrsum fuscis: subtus flavescens, plumis olivaceo utrinque limbatis; gutture, ventre 
medio et subalaribus immaculatis: rostro et pedibus nigris, carunculis rictalibus vix ullis. 
¢ juv. femine similis, plumis maris undique apparentibus, carunculis obviis. (Descr. exempl. ex Tucurriqui, 
Costa Rica. Mus. nostr.) 
Hab. Costa Rica, Tucurriqui (Arcé*), San José, Dota Mts., Cervantes (Carmiol §), 
Turrialba (Cooper ®), La Palma (Nutting 1°); Panama, Boca del Toro (Verreaua 1), 
Volcan de Chiriqui *, Cordillera de Tolé*, Calovevora®, Veraguas 4 (Arcé). 
This species has almost exactly the same range as Cephalopterus glabricollis, being 
found in the same mountains over a similar area. It was first described from specimens 
