318 TANA&EID^. 



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 to the region. Of the others, one, 

 £. bnmneinucha, is the most widely distributed of the whole genus, ranging from 

 Mexico to Peru ; both B. 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 Eica. Of the peculiar species, 

 B. virenticeps has only been found as yet in Mexico. B. capitalis, B. crassirostris, 

 and B. tibialis are all birds of the highlands of Costa Eica and Panama. 



Buarremon is another step in the direction of the Fringillidse, whicb 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 proba.bly considerably modify the classification now used. 



1. Buarremon assimilis. 



Tanagra assimilis, Boiss. Eev. Zool. 1840^ p. 67 \ 



Buarremon assimilis, Bp. Consp. i. p. 484"; Scl. P. Z. S. 1856, p. 85' j 1859, p. 441*; 1860, 



p. 76 = ; Salv. Ibis, 1874, p. 308 '; Cat. Strickl. Coll.. p. 197"; Scl. & Salv. P. Z. S. 1875, 



p. 234 8; 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 oeeipitali cum cervice postica et lateral! cinereis ; 

 subtus albus, hypochondriis et crisso olivacescenti-ciiiereis ; rostro nigro, pedibijs coiyUnis. Long, tota 7-5, 

 alffi 3-3, caudaa 3-3, rostri a rictu 0-7, tarsi 1-15. (Descr. feminsB ex Medellin, Colombia. Mus. nostr.) 



3 feminse omnino similis. 



j&«5. Costa Eica, Guaitil (ftjrmwPi).— Colombia ^^ 37 9. Ecuador ^4 5. pBRtjiO; 



Venezuela ®. 



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-Eican birds. That author 

 had some doubts as to whether the Costa-Eican 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 n. 



