278 CRACID. 
Penelopina nigra, Scl. & Salv. P. Z. S. 1870, p. 528°; Salv. Cat. Strickl. Coll. p. 560°; Salv. & 
Godm. Ibis, 1892, p. 3287; Grant, Cat. Birds Brit. Mus. xxii. p. 503°; Game-Birds, ii. 
p. 233°. : 
Nigra, saturate viridi vel cyanescenti-viridi adumbrata, gastreo brunnescentiore; regione periophthalmica — 
nuda, purpurea; gutture et prepectore nudis, cum caruncula magna, rubris: rostro et pedibus rubris; 
iride rufescenti-brunnea. Long. tota circa 24:0, alee 9-3, caude 11:0, tarsi 2°9. (Descr. maris adulti ex 
Santa Rita, Chiapas. Mus. nostr.) 
Q supra nigra, rufo fasciata; pilei et colli postici plumis nigris, brunneo marginatis; prepectore arenaceo- 
brunneo, nigro indistincte marmorato.; pectoris et corporis lateralium plumis rufescenti-fulvo et saturato- 
fulvo marginatis; abdomine brunnescenti-griseo, fusco marmorato. Ala 9°3. (Descr. femine adulte ex 
Volcan de Agua. Mus. nostr.) 
Hab. Mexico, Santa Rita, Chiapas (Richardson); Guatemaua (Skinner 3, Constancia ®), 
Coban, Vera Paz (0. S.28), Volcan de Agua, Volcan de Fuego (0. S. & 
F. D. G.4°8), El Rincon, San Marcos (Richardson®); NicaRacua, Matagalpa 
(Richardson *). 
P. nigra was supposed to be confined to the forests of Guatemala, but Mr. Richardson 
recently procured an example in Chiapas, as well as a female at Matagalpa. A further 
series of specimens is perhaps necessary before we can positively decide that the birds 
from Nicaragua and Guatemala are identical. 
We have but few notes on the habits of the Black Penelope, but when shooting in 
one of the ravines of the Volcan de Agua we observed that the male bird had a 
curious habit of “drumming.” As it flew in a downward direction, it emitted a sort 
of crashing or rushing noise, like that produced by a falling tree. 
CHAMAPETES. 
Chamepetes, Wagler, Isis, 1832, p. 1227; Grant, Cat. Birds Brit. Mus. xxii. p. 521 (1898). 
The Sickle-winged Guans differ chiefly from the Penelopes in having the fore part 
of the neck as well as the chin and throat entirely feathered, and there is no wattle. 
The two outer primary-quills are deeply excised at the extremity, the third less so. 
Two species are known, one of which occurs within our limits, while the second, 
C. goudott, inhabits Tropical South America. 
1. Chamepetes unicolor. (Tab. LXX1.) 
Chamepetes unicolor, Salv. P. Z. 8. 1867, p. 159°; 1870, p. 2177; Lawr. Ann. Lye. N. Y. 
ix. p. 189°; v. Frantz. J. f. Orn. 1869, p. 372*; Scl. & Salv. P. Z. S. 1870, p. 581°; 
Boucard, P. Z. S. 1878, p. 42°; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 1287; Grant, 
Cat. Birds Brit. Mus. xxii. p. 522°; Game-Birds, ii. p. 257°. 
Niger, viridi adumbratus: subtus niger, abdomine tamen brunnescentiore, vix rufescenti-fulvo marmorato: 
rostro nigro; pedibus rubris. Long. tota circa 24-0, ale 11:4, caude 10-5, tarsi 2°7. (Deser. exempl. 
typ. ex Veragua. Mus. nostr.) 
Hab. Costa Rica (Carmiol*), Volcan de Irazu (Boucard*, Rogers*), San José 8, La 
