BUAEEEMON. 319 



Salvin, who examined the Costa-Eican specimen in 1874, came to the conclusion 

 that it was not really separable from B. assimilis, and attributed the difference of the 

 size of the bill to the feathers being rubbed off the base in the Costa-Eican example, 

 giving it an appearance of greater size ; the difference in the colour of the cheeks is 

 due to the feathers being more closely set in the preparation of the skin. 



In South America B. assimilis is well known from Colombia to Peru. In the latter 

 country Stplzmann obtained its eggs at Callacate. These are described by M. Tacza- 

 nowski as of a uniform pale greenish colour. The iris is stated to be of a brownish 

 cherry-colour ^*^. 



2. Buarremou vireuticeps. 



Buarremon virenticeps, Bp. Compt. Eend. xli. p. 657'; Scl. P. Z. S. 1856, p. 85^; Cat. Am. B. 



f p.9o^ 



Fringilla quadrivittata, Licht. Mus. Berol. [fide Sclater). 



B. assimili afflnis, sed capitis striis et cervice tota olivacescentibus dorso fere eoncoloribus ; subtus hypocbondriis 

 et crisso fuscescentioribus. Long, tota 7"0, alae 3-2, caudse 3-6, rostri a rictu 0'7, tarsi 1-1. (Desor. 

 exempl. ex Mexico. Mus. nostr.) 



Eab. Mexico ^ {le Strange, Boucard). 



Though now well known as an inhabitant of Southern Mexico, the name of B. 

 virenticeps is absent from the lists of birds obtained by Salle, Boucard, and others, 

 published from time to time by Mr. Sclater.. We have, however, a specimen from 

 M. Boucard ; Mr. le Strange also obtained examples, and we have seen others in 

 Mr. Sclater's and other collections. 



B. virenticeps is evidently allied to B. assimilis, but may at once be distinguished by 

 the occipital and superciliary stripes of the head being olivaceous instead of grey. 



3. Buarremon brunneinucha. 



Embernagra brunneinucha, Lafr. Rev. Zool. 1839, p. 97 \ 



Buarremon brunneinuchus, Scl. P. Z. S. 1856, pp. 85 % 303 ' ; 1858, pp. 73 % 303 ° ; 1859, pp. 138 \ 

 364', 377 ^ 1864, p. 174'; Scl. & Salv. Ibis, 1859, p. 15"; P. Z. S. 1868, p. 637"; 

 1875, p. 334'^; 1879, p. 504 '^ Cab. J. f. Orn. 1860, p. 414"; Cassin, Pr. Ac. Phil. 1865, 

 p. 170"; Salv. P. Z. S. 1867, p. 140'?; 1870, p. 189"; Cat. Strickl. CoU. p. 198"; 

 Sumichrast, Mem. Bost. Soc. N. H. i. p. 549"; Lawr. Ann. Lye. N. Y. ix. p. 101^°; 

 V. Prantz. J. f. Orn. 1869, p. 300"; Tacz. P. Z. S. 1874, p. 515 ^^ 1879, p. 338^^; 1880, 

 p. 196 ^. 

 Arremon frontalis, Tscb. Faun. Per. p. 313 ^^ 

 Buarremon icanthophrys, Cab. Mus. Hein. i. p. 141 ^^ 



Olivaceus, alis et cauda brunnescentioribus, pileo postico et nucha castaneis utrinque cinnamomeo Kmbatis, 

 fronte et capitis lateribus nigris ilia iiigro trimaculata ; subtus gula et abdomine medio albis, pectore nigro, 

 hypochondriis et crisso olivaeeo-cinereis ; rostro nigro, pedibus corylinis. (Descr. exempl. ex Jalapa, 

 Mexico. Mus. nostr.) 

 $ mari omnino similis. 



