280 
ON THE CLASSIFICATION OP BIBOS. 
Feet' moderate, or small. Tropics of the Old World 
only : represented by Tiaris in America. 
Estrelda, Sw. Bill small, moderate. Tail lengthened, 
graduated, or rounded. Feet moderate. Tarsus longer 
than the hallux. 
E. melanogaster. W. Af. i. !94. phoenicotia. Ib. pi. 14. 
caerulescens. Ib. i. 195. 
Amadina, Sw. Size larger. Bill short, very thick and 
broad at the base. Tail short, rounded, or even. 
Tarsus longer than the hallux. 
A. fasciata. West. Af. i. pi. 15. nitens. Ib. i. 199. 
Spermestes, Sw. Bill short, thick. Feet very large. 
Toes and claws long and slender. Tail short, even. 
Chiefly India. 
S. cucullata. West. Af. i. 201 . 
Erythura, Sw. Bill thick, lengthened, resembling that 
of Euplectes. Tail very long, acuminated. 
E. viridis. PI. Col. 96. 
Pytelia, Sw. BiU slender, conic, much lengthened. 
Tail short, even. Feet very small. 
P. phoenicoptera. West. Af. i. pi. 16. 
Tiabis, Swains. Crestlet. Bill perfectly conic, entire : 
commissure sinuated, and conspicuously angulated. 
Nostrils almost naked, round. Wings moderate ; first 
quill rather shorter than the second, third, and fourth, 
which are equal, and longest. Tail even, or slightly 
rounded. Feet moderate. Middle toe and tarsus 
of equal length ; lateral toes equal ; hinder toe much 
shorter than the tarsus. Claws small, fuUy curved.. 
Head crested. South America only. 
T. ornatus. PI. Col. 208. 
Cabdublis, Briss. Goldfinch. Bill lengthened, conic, 
compressed; the tip much attenuated and acute; the 
gonys straight; commissure slightly sinuated. Wings 
lengthened, pointed; the first, second, and third quills 
nearly equal, and longest. Tail moderate, slightly 
forked. Feet short. Middle toe longer than the 
