86 Hans von Berlepsch on the Genus Cyclorliis. 



^5. Cyclorhis guianensis (Gm.). 



In this species much individual variation is observable^ and 

 there are specimens of C. flavipectus from Porto Cabello, 

 Venezuela, and Trinidad, which somewhat approach to C. 

 guianensis, although they show less greyish suffusion on the 

 belly, and have a lighter tip to the under mandible. The 

 brownish suffusion on the ashy pileum is an individual cha- 

 racter, and is found in immature specimens of C. flavipectus as 

 well as in C. guianensis. I should remark, however, that but 

 one specimen from Trinidad in Mus. H. v. B. shows the 

 pileum as clear bluish ash as in C. guianensis, other Trinidad 

 skins possessing rather a brownish cap, as do the majority 

 of specimens from Bogota and Venezuela. 



Prof. Baird says that G. guianensis has the legs dusky. In 

 two skins from British Guiana I found them dusky ; but in 

 the majority from the same locality, and in two birds from 

 N.E. Peru, they are rather pale flesh-colour, just as in true 

 C. flavipectus. 



■f 6. Cyclorhis albiventris, Scl. 



Mr. Sclater expresses his opinion that C. albiventris can- 

 not be =C'. cearensis, Baird, because the latter is stated to 

 possess a decided buff tinge on the belly. Now several of 

 my specimens from Bahia, belonging certainly to C. albi- 

 ventris, show a buff tinge on the sides of the belly, which is 

 wanting in others. C. cearensis, Baird, is based on two 

 specimens from Ceara; but Prof. Baird says, "a specimen 

 from Bahia is quite similar.''* 



Therefore I think there cannot be the slightest doubt 

 that C. albiventris is a synonym of C. cearensis. Mr. Sclater 

 certainly would agree with me that it is quite improbable, 

 or nearly impossible, that two so similar species, only differ- 

 ing in the presence or absence of a buffy tinge to the 

 white belly, should occur in one and the same locality. In 

 fact, the buffy tinge of the belly is rather an individual 

 character, being likewise found in young or freshly moulted 

 specimens of C. guianetisis ; and even specimens of C. ochro- 

 cephala differ among themselves in that respect, the belly 



