164 WHITE-BILLED NUT-CRACKER. 



Total length, 10 inches ; bill, from the gape, T 8 S ; 

 wings, 5 ; tail beyond, 3 ; ..from the base, 4^ ; tar- 

 sus, 1 ; hind-toe and claw, in a straight line, T 8 Q. 



Following this type, we place another exceedingly 

 rare bird from Senegal, both sexes of which we 

 shall now describe ; we consider it, for the present, 

 as the most aberrant of the hard-bills, and therefore 

 as belonging to the Tenulrostral form; although 

 other species doubtless exist, which will be found 

 more characteristic of this particular type ; it seems 

 however, intermediate between the last form and 

 Coccothraustes 



BLUE-BILLED NUT-CRACKER. 



Spermophaga cyanorynchus^ SWAINS. 



Blackish or cinereous ; throat, breast, and flanks, crimson ; 

 bill, blue tipt with orange ; female, with white spots on 

 the belly. 



Loxia hsematina, Vieillot, Ois. Chant. PL 67. Loxia 

 guttata, ib. 68. 



ALTHOUGH the two birds we shall now describe 

 under the above name have been considered diffe- 

 rent species, we strongly suspect they will turn out 

 to be sexes of only one. Their size and proportions 

 are precisely tfye same, while the very remarkable 

 colour of the bill, exactly alike in both, still further 



