CHAMAPETES,—ORTALIS. 279 
Palma *4 (v. Frantzius), Rancho Redondo (v. Frantzius+, Zeledon >") ; PANAMA, 
Veragua 1, Calovevora 28, Cordillera de Tolé ® (Arcé). 
The Black-breasted Sickle-winged Guan, locally known as the “ Gallina volcanica,” 
is very common on the slopes of the Volcan de Irazu. According to Dr. A. von 
Frantzius, the bird is most frequently shot towards the end of the rainy season, when 
it leaves the thick forests on the hill-sides and visits the lower-lying and less densely 
wooded parts. Nothing else concerning its habits appears to have been recorded. 
ORTALIS. 
Ortalis, Merrem, Av. Icones et Deser. ii. p. 40 (1786) ; Wharton, Ibis, 1879, p. 450; Grant, Cat. 
Birds Brit. Mus. xxu. p. 504. 
Ortalida, Wagl. et auctt. 
The sexes in Ortalis are alike in plumage, and the species are further distinguished 
from those of the foregoing genera by having a narrow band of feathers down the 
middle of the throat, which is otherwise bare ; no wattle is present. 
Highteen species are recognized, of which one only extends its range into the 
southern United States; five are found in Central and the remainder in South 
America. 
1. Ortalis wagleri. (Tab. LXXII.) | | 
Ortalida wagleri, G. R. Gray, List Galline Brit. Mus. p.12’; Scl. & Salv. P. Z. 8. 1870, p. 534°; 
Lawr. Mem. Bost. Soc. N. H. i. p. 306°. 
Ortalis wagleri, Grant, Cat. Birds Brit. Mus. xxii. p. 507*; Handb. Game-Birds, ui. p. 237, t. 39 7 
Supra grisescenti-olivacea; pileo brunnescenti-nigro, nucham versus graduatim saturate cinereo; capitis 
lateribus, supercilio et gula mediana pallide cinereis ; prepectore grisescenti-olivaceo ; pectore et corpore 
reliquo subtus castaneis ; rectricibus quatuor externis saturate czrulescenti-viridibus, saturato-castaneo 
late terminatis: rostro fusco, area periophthalmica rubra, cyaneo variegata; gutture laterali nudo, rubro ; 
pedibus griseis. Long. tota circa 25-0, ale 9°5, caudw 10-5, tarsi 3-0. (Deser. maris adulti ex Presidio 
de Mazatlan. Mus. nostr.) 
9 mari similis. Ala 9:5. (Descr. femine adulte ex Sinaloa. Mus. nostr.) 
Hab. Western Mexico1, Mazatlan (Grayson??), Presidio de Mazatlan (Forrer*), 
San Blas and Santiago de Tepic, Jalisco (Richardson *). 
This species can be easily recognized from all the other members of the genus 
Ortalis by its chestnut abdomen. It is a native of Western Mexico, occurring from 
Mazatlan to Jalisco. 
Nothing has been recorded of its habits. 
2. Ortalis poliocephala. 
Penelope polivcephala, Wag). Isis, 1830, p. 1112’. 
Ortalida poliocephala, Wagl. Isis, 1882, p. 12277; Scl. & Salv. P.Z.S. 1869, p. 364°; 1870, 
p. 537*; Lawr. Mem. Bost. Soc. N. H. ii. p. 306°; Bull. U. S. Nat. Mus. no. 4, p. 45°; 
Sumichr. La Nat. v. p. 229". 
