PHEUCTICUS. 335 
1. Pheucticus chrysopeplus. 
Coccothraustes chrysopeplus, Vigors, P. Z. S. 1832, p. 4. 
Coccoborus chrysopeplus, Bp. Consp. Av. i. p. 504°. 
Pheucticus chrysopeplus, Finsch, Abh. nat. Ver. z. Bremen, 1870, p. 339°; Lawr. Mem. Bost. Soc. 
N. H. ii. p. 274+. 
Luteus, dorso medio (luteo variegato), alis et cauda nigris, remigibus apicem versus extus albo limbatis, speculo 
alari et tectricibus alarum ad apices albis, rectricibus tribus utrinque externis in pogonio interno plaga magna 
alba notatis, subalaribus flavis; rostro et pedibus nigricanti plumbeis. Long. tota 8°3, alee 4-6, caudee 3°8, 
tarsi 1°1, rostri a rictu 1. 
2 supra flavido-fusca fusco variegata, alis et cauda fuscis, illis albo bifasciatis hac unicolori immaculata; subtus 
sordide lutea, rostri mandibula pallida. (Descr. maris et femine ex Mazatlan, Mexico. Mus. nostr.) 
Hab. Mexico? (Cuming '), Mazatlan (Grayson? *, Bischoff*, Forrer), Rio de la Ameria 
(Xantus *). 
The original description of this species was by Vigors, whose types were obtained by 
the late Hugh Cuming on the coast of Mexico. For nearly forty years we had no 
further tidings of the species, and during this time Vigors’s name was placed as a 
synonym of P. chrysogaster, a South-American bird undoubtedly allied to P. chryso- 
peplus. It is to Grayson that we owe the rediscovery of this species, and its redescrip- 
tion to Dr. Finsch, into whose hands a few of Grayson’s specimens came, and who 
described them fully and carefully in 1873 °. 
The limited range of P. chrysopeplus, confined as it is to the districts near Mazatlan 
in Western Mexico, and the fact that its nearest and not remote ally must be sought in 
Venezuela and Ecuador, is a remarkable feature in the geographical distribution of the 
birds of this part of the world. The further circumstance that P. tebtalis of Costa Rica 
is more remotely allied to it than is P. chrysogaster enhances the difficulty of explaining 
the facts of its distribution, and at present we have no theory to advance in explanation 
of them. 
Grayson says‘ that P. chrysopeplus is rather common in the vicinity of Mazatlan, 
where its cheerful and voluminous song is often heard in the woods. He adds that it 
does not migrate. 
P. chrysopeplus may at once be distinguished from the only other Central-American 
Pheucticus, P. tibialis, by the male having white tips to the tail, yellow thighs, &c. 
2. Pheucticus tibialis. 
Pheucticus tibialis, “ Baird,” Lawr. Ann. Lyc. N. Y. viii. p. 478°; ix. p. 102°; Salvadori, Atti R. 
Acc. Se. Tor. iv. p. 177,t.5°; Frantz. J. f. Orn. 1869, p. 300°; Salv. P.Z.S. 1870, p. 189°. 
Sordide flavus, abdomine toto et crisso dilutioribus ; loris, interscapuliis, alis, cauda et tibiis nigris, speculo alari 
albo ; rostro et pedibus plumbeo-nigris. Long. tota 8, ale 4°3, caude 3:1, rostri a rictu 0:8, tarsi 0-95. 
© mari similis, capite et cervice postico paullo obscurioribus. (Descr. maris et femine ex Calovevora, Panama. 
Mus. nostr.) 
Hab. Costa Rica’, Cervantes (J. Cooper} *, Carmiol?), Tucurriqui, Rancho Redondo 
