PLACOSTOMUS. 



1-13 



Genus PLACOSTOMUS Ridgw. 



Placosfomns Ridgway, Proc. Biol. Soc. Wash, xviii. p. 208, Sept. 2, 

 1905. Type P. siiperciliaris (Lawr.). 



Fig. 58. — Placostomus superciliaris. 



The species on which this genus is based has a wide flat bill, 

 the width at the base being nearly equal to the length of the 

 exposed portion of the culmen. The wing is rounded, the second, 

 third, and fourth primaries longest and subeqnal, the first about 

 equal in length to that of the fifth. The tail is square at the tip 

 and about half the length of the wing. The tarsus about three- 

 eighths the length of the tail and the hind toe and claw about 

 equal to the middle toe and claw. Coloration; male and female 



similar. 



Key to the Species. 



A. Under surface fawn-colour, not yellowish or 



greyish. 

 a. Largei', wing 68 mm. ; coronal patch white. P. griseiceps, p. 148. 

 h. Smaller, wing 53 mm. ; coronal patch yellow P. insularia, jj. 14-1. 



B. Under surface yellowish or grey, not fawn- 



colour. 

 c. Larger, wing 59 ram. ; coronal patch fiery 



chestnut P. satnmtus, ]). 145. 



(/. Smaller, wing 56 mm. ; coronal patch bright 



yellow P. (/iimla, p. 1-16. 



■441. Placostomus gTiseiceps. 



GUEY-HEADEU FlAT-BILL. 



Piafi/rJn/iicJius r/riseiceps Salvin, Bull. Brit. Orn. CI. vii. p J 5, IS!)7 

 (Aniiai) ; Brabourne & Chubb, li. S. Amer. i. p. 26i), no. 2713 

 1912. 



Adult male. CJrown of head il;irk slate-colour with white bases 



