Vol. xxix.] 86 



Tschudi^s C. flaveola was described from the eastern slopes 

 of the Peruvian Andes, which is the home of C. magni- 

 rostris. Further, Dr. Reichenow informs me that the type 

 of C. peruviana is missing, so that there seem to he ample 

 reasons for regarding C. peruviana as a synonym of C. magni- 

 rostris, or for sinking it altogether. 



C(EREBA CHLOROPYGA ALLENI, Subsp. U. 



Adult male and female. Differ from specimens of C. chloro- 

 pijga from Bahia, Brazil (type locality), in being paler, both 

 above and below, and in having the colour of the pileum 

 barely differentiated from that of the mantle (in typical 

 specimens it is dark brownish-black). The mantle and 

 scapulars are pale olive-brown, as compared with darker 

 ashy-brown in typical specimens, the rump is paler olive- 

 green, and the yellow of the underparts is citron, as opposed 

 to saffron-yellow. There is no wing-spot, and the colour of 

 the throat-patch can hardly be differentiated from that in 

 topo-typical examples. Compared with specimens of 

 C. majuscula (the type of which Dr. Reichenow has kindly 

 sent me from the Berlin Museum), C. c. alleni is also a 

 smaller and paler bird. 



Exposed culmen 13-14 mm. ; wing 57-58. 



Hab. Matto Grosso, Brazil. 



Tyjoes in the British Museum: (J, No. 31419 (05.1.30.100), 

 Chapada, 22. iv. 85 ; H. H. Smith coll. ? (89.1.10.105), 

 Chapada, 8.vi. 85 ; H. H. Smith coll. 



Ohs. This species is named in honour of Dr. J. A. Allen, 

 who described a large collection of birds from Matto Grosso. 



Mr. Rothschild said that the species of Ccereba were very 

 interesting, because each form was extremely local and con- 

 fined to a comparatively small area. This was most marked 

 in the West Indies, where each island had one or more forms 

 of Ccereba peculiar to it, and while on some islands the form 

 showed dimorphism, viz. a melanic and a normal coloration, 

 on others only the melanic form had survived, or vice versd. 



