278 CEACID^. 



Penelopina nigra, Scl. & Salv. P. Z. S. 1870, p. 528 '; Salv. Cat. Strickl. Coll. p. 560'; Sal v. & 

 Godm. Ibis, 1892, p. 328'; Grant, Cat. Birds Brit. Mus. xxii. p. 503'; Game-Birds, ii. 

 p. 233 '. 



Nigra, saturate viridi vel cyanescenfci-viridi adumbrata, gastrseo brannescentiore; regione periophthalmica 

 nuda, purpurea ; gutture et praepectore nndis, cum caruncula magna, rubris : rostro et pedibus rubris ; 

 iride rufescenti-brunnea. Long. tx)ta circa 24-0, alee 9-3, caudae 11"0, tarsi 2-9. (Descr. maris adulti ex 

 Santa Rita, Chiapas. Mas. nostr.) 

 $ supra nigral, rufo fasciata ; pilei et colli postici plumis nigris, brunneo marginatis ; praepectore arenaceo- 

 brunneo, nigro indistincte marmorato ; pectoris et corporis lateralium plumis rufeseenti-fidvo et satnrato- 

 folvo marginatis ; abdomine brunnescenti-griseo, fusco marmorato. Ala 9-3. (Descr. feminae adultae ex 

 Volcan de Agua. Mus. nostr.) 



Hab. Mexico, Santa Rita, Chiapas (Bichardson) ; Guatemala (Skinner ^, Constancia ^), 

 Coban, Vera Paz (0. S.^^), Volcan de Agua, Volcan de Fuego (0. S. 8f 

 F. B. G.^^ ^), El Eincon, San Marcos {Richardson ^) ; Nicaeagua, Matagalpa 

 (Bichardson ^). 



P. nigra was supposed to be confined to the forests of Guatemala, but Mr. Kichardson 

 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. 



CHAM^PETES. 

 Chamapetes, Wagler, Isis, 1832, p. 1227; Grant, Cat. Birds Brit. Mus. xxii. p. 521 (1893). 



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. goudoti, inhabits Tropical South America. 



1. Chamaepetes tmicolor. (Tab. LXXI.) 



Chanuepetes unicolor, Salv. P. Z. S. 1867, p. 159'; 1870, p. 217'; Lawr. Ann. Lye. N. Y. 

 ix. p. 139'; v. Frantz. J. f. Orn. 1869, p. 372*; Scl. & Salv. P. Z. S. 1870, p. 531 ° ; 

 Boucard, P. Z. S. 1878, p. 42 ^ Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 128'; Grant, 

 Cat. Birds Brit. Mus. xxii. p. 522 * ; Game-Birds, ii. p. .257 \ 



Niger, viridi adnmbratus : subtus niger, abdomine tamen brannescentiore, vis rufescenti-fulvo marmorato : 

 rostro nigro ; pedibus rubris. Long, tota circa 24-0, alae 11-4, caudae 10-5, tarsi 2-7. (Descr. exempL 

 typ. ex Veragua, ilus. nostr.) 



Hab. Costa Eica (Carmiol% Volcan de Irazu (Boucard^, Rogers^), San Jose^, La 



