BUARREMON. 319 
Salvin, who examined the Costa-Rican 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-Rican 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 Stolzmann 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°, 
2. Buarremon virenticeps. 
Buarremon virenticeps, Bp. Compt. Rend. xli. p. 6571; Scl. P. Z. S. 1856, p. 857; Cat. Am. B. 
p. 90°. 
Fringilla quadrivittata, Licht. Mus. Berol. (fide Sclater). 
B. assimili affinis, sed capitis striis et cervice tota olivacescentibus dorso fere concoloribus ; subtus hypochondriis 
et crisso fuscescentioribus. Long. tota 7:0, ale 3-2, caudex 3-6, rostri a rictu 0°7, tarsi 1:1. (Deser. 
exempl. ex Mexico. Mus. nostr.) 
Hab. 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 Sallé, 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. 8S. 1856, pp. 85°, 302°; 1858, pp. 72*, 303°; 1859, pp. 188°, 
364", 377°; 1864, p. 174°; Scl. & Salv. Ibis, 1859, p. 15"; P. Z. S. 1868, p. 627"; 
1875, p. 284°; 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. 189'7; Cat, Strickl. Coll. p. 198"; 
Sumichrast, Mem. Bost. Soc. N. H. i. p. 549"; Lawr. Ann. Lyc. N. Y. ix. p. 101”; 
v. Frantz. J. f. Orn. 1869, p. 300*'; Tacz. P. Z. 8S. 1874, p. 515”; 1879, p. 228”; 1880, 
p- 196. 
Arremon frontalis, Tsch. Faun. Per. p. 212”. 
Buarremon xanthophrys, Cab. Mus. Hein. i. p. 141°°. 
Olivaceus, alis et cauda brunnescentioribus, pileo postico et nucha castaneis utrinque cinnamomeo limbatis, 
fronte et capitis lateribus nigris illa nigro trimaculata; subtus gula et abdomine medio albis, pectore nigro, 
hypochondriis et crisso olivaceo-cinereis ; rostro nigro, pedibus corylinis. (Descr. exempl. ex J alapa, 
Mexico. Mus. nostr.) 
@ mari omnino similis, © 
