PLACOSTOMUS. Ii3 



Gemis PLACOSTOMUS Eidgw. 



Placostomus Eidgway, Pj-oc. Biol. Soc. Wash, xviii. p. 208, Sept. 2, 

 1905. Type P. superciliaris (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 subequal, the first about 

 equal in length to that of the filth. 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 smrface fawn-colour, not yellowish or 



greyish. , 



a. Larger, wing 68 mm. ; coronal patch white. P. griseiceps, p. 143. 

 h. Smaller, wing 53 mm.; coronal patch yellow P. insularis, p. 144. 



B. Under sm-face yellowish or grey, not fawn- 



colour. 



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



chestnut P. saturatus, p. 145. 



d. Smaller, wing 56 mm. ; coronal patch bright 



yellow P. gumia, p. 146. 



441. Placostomus griseiceps. 



Gbey-headed Flat-bill. 



Platyrhynchus griseiceps Salvin, BuU. Brit. Orn. CI. vii. p 15, 1897 

 (Annai) ; Brabourne & Chubb, B. S. Amer. i. p. 269, no. 2743 

 1912. 



Adult male. Crown of head dark slate-colour with white bases 



