318 TANAGRIDE. 
species were included in Buarremon as thus expanded; and since then no less than 
thirteen have been added to it. With the single exception of the Guianan JB. 
personatus, these are all distributed over the mountainous countries of Western 
America (including Venezuela), from Bolivia to Southern Mexico. Within our limits 
eight species are included, half of which are peculiar tothe region. Of the others, one, 
B. brunneinucha, is the most widely distributed of the whole genus, ranging from 
Mexico to Peru; both &. gutturalis and B. albinucha extend from Mexico to Colombia, 
but the latter is not found in the intervening country ; lastly, B. assimilis, of Colombia, 
Ecuador, and Peru, has only once been obtained in Costa Rica. Of the peculiar species, 
B. virenticeps has only been found as yet in Mexico. J. capitalis, B. crassirostris, 
and B. tibialis are all birds of the highlands of Costa Rica and Panama. 
Buarremon is another step in the direction of the Fringillide, which it resembles in 
the stout conical bill, which in B. crassirostris is especially strong; there is a small 
notch near the end of the commissure of the maxilla; the wings are rather long and 
rounded, the fourth, fifth, and sixth quills being the longest ; the tail is elongated and 
much rounded; the tarsi and toes generally long and strong, to suit a terrestrial habit 
(this is especially so in B. capitalis) ; and the sexes are alike in plumage. 
Though we adopt the limits and position of the genus Buarremon assigned to it by 
Mr. Sclater, we feel at the same time that its relationship with such Fringilline genera 
as Pyrgisoma, Atlapetes, and thence to some members of Pipilo, is by no means unim- 
portant, and that a close examination of more characters than such as are afforded by 
the study of skins will very probably considerably modify the classification now used. 
1. Buarremon assimilis. 
Tanagra assimils, Boiss. Rev. Zool. 1840, p. 67°. 
Buarremon assimilis, Bp. Consp. i. p. 484°; Scl. P. Z. S. 1856, p. 85°; 1859, p. 441 *; 1860, 
p- 76°; Salv. Ibis, 1874, p. 308°; Cat. Strickl. Coll. p. 1977; Scl. & Salv. P. Z. S. 1875, 
p. 234.5; 1879, p. 504°; Tacz. P. Z. S. 1880, p. 196". 
Buarremon assimilis, ? Lawr. Ann. Lye. N. Y. ix. p. 101”. 
Olivaceus, pileo et capitis lateribus nigris; superciliis, stria occipitali cum cervice postica et laterali cinereis ; 
subtus albus, hypochondriis et crisso olivacescenti-cinereis ; rostro nigro, pedibus corylinis. Long. tota 7:5, 
ale 3°3, caudse 3°3, rostri a rictu 0-7, tarsi 1:15. (Deser. femine ex Medellin, Colombia. Mus. nostr. ) 
6 feming omnino similis. 
Hab. Costa Rica, Guaitil (Carmiol )—CotomBia 12379; Ecuapor?45; Prrv!; 
VENEZUELA 8, 
The only recorded instance of the occurrence of this species within our limits is that 
given by Mr. Lawrence, who included it in his list of Costa-Rican birds. That author 
had some doubts as to whether the Costa-Rican specimen was really referable to B. assi- 
milis, stating that the bill was larger, the colour of the cheeks deeper black, and the 
tarsi shorter than in the typical Bogota bird 4. 
