P0LIOL.EMA. 35 



Genus POLIOL^IMA Chubb. 



Poliolmma Chubb, Bull. Brit. Orn. Club, xxxix. p. 42, Jan. 3, 1919. 

 Type P. cinereiventris (Scl. & Salv.). 



% 

 Fig. 17. — Poliolcema cinereiventris. 



This genus is readily distinguished in having the throat uniform 

 with the rest of the under surface. The bill, which is long 

 compared with the other genera of this group, has the exposed 

 culmen about equal in length to the hind toe and claw. The wing 

 is rounded, the third, fourth, and fifth quills longest, the second 

 about equal to the seventh. The tail is short and nearly square, 

 the outer feather on each side is only very slightly shorter than the 

 rest. The feet are small and weak. Male and female entirely 

 different in colour. 



Key to the Species. 



A. Abdomen grey like the breast P. cinereiventris, cJ, p. 35. 



a. Upper tail-coverts grey like the back. P. cinereiventris, ?, p. 36. 



B. Abdomen ferruginous in contrast to the 



grey breast P. guttata, d , p. 36. 



i. Upper tail-coverts ferruginous in con- 

 trast to the back P. guttata, $ , p. 37. 



370. Poliolsema cinereiventris. 



G-KEY-BKEASTED AnT-BIKD. 



Myrmotherula cinereiventris Sclater & Salvin, P. Z. S. 1867, p. 756 

 (Cayenne) ; Salvin, Ibis, 1885, p. 426 (Bartica Grove, Camacusa) ; 

 Sclater, Cat. B. Brit. Mus. xv. p. 244, 1890 (Bartica Grove, 

 Camacusa) ; Brabourne & Chubb, B. S. Amer. i. p. 199, no. 1993, 

 1912. 



Adult male. General colour above and below lead-grey, rather 

 paler on the throat ; the subapical portion of the upper wing- 

 coverts black fringed with white at the tips ; primary and 

 secondary quills dark brown on the inner webs with pale edgings ; 

 tail-feathers narrowly tipped with white ; under wing-coverts 



d2 



