24. ONCOSTOMA. 77 



1 . Oncostoma cinereigulare. 



Todirostram cinereigulare, Selater, P. Z. S. 1856, p. 295 (Mexico) ; 



id. P. Z. S. 1857, p. 84, et 1859, p. 384 (Mexico) ; id. Ibis, 1859, 



p. 444 ; Lawr. Ibis, 1862, p. 12. 

 Oncostoma cinereigulare, Scl. Cat. A. B. p. 208; Scl. et Salt). 



Nbmencl. p. 45 ; Salv. Ibis, 1866, p. 194 (Vera Paz) ; id. P. Z. S. 



1870, p. 196 (Veragua) ; Frantz. J. f. O. 1869, p. 307 (Costa 



Rica) ; Boucard, P. Z. S. 1883, p. 447 (Yucatan). 



Above olive-green, crown slightly cinerascent ; wings and tail 

 blackish ; wing-coverts tipped and outer secondaries edged with 

 yellowish olive ; primaries and rectrices narrowly margined with 

 green ; bend of wing yellowish : beneath yellowish, slightly rlammu- 

 lated with olive ; throat and breast cinereous ; under wing-coverts 

 pale yellowish ; bill dark horn-colour, whitish at the base ; feet 

 pale brown : whole length 3-8 inches, wing 2, tail 1-6. Female 

 similar. 



Hab. Southern Mexico and Central America to Chiriqui. 



a. 3 ad. sk. Oaxaca, Mexico (Boucard). Selater Coll. (Type 



of the species.) 



b. Ad. sk. Northern Yucatan (Gaunter). Salvin-Godmau Coll. 



c. Ad. sk. Vera Paz (Salvin). Selater Coll. 



d. Ad. sk. Retaluleu, Guatemala (Salvin). Salvin-Godman Col!. 



e. Ad. sk. Coban, Vera Paz (Salvin). Salvin-Godman Coll. 

 /. Ad. sk. Vera Paz (Salvi?i). Salvin-Godman Coll. 

 q. Ad. sk. Vera Paz (Salvin). O. Salvin, Esq. [P.]. 

 'h. Ad. sk. Vera Paz (Salvin). Tweeddale Coll. 



t. c?ad. ; j. Ad. Volcan de Agua, Guatemala (Sal- Salvin-Godman Coll. 



sk. vin). 



k. cjad.sk. Bugaba, Chiriqui (Arc€). Salvin-Godman Coll. 



/. Ad. st. Honduras. D. Dyson [C.]. 



2. Oncostoma olivaceum. 



Todirostrum olivaceum, Lawrence, Ibis, 1862, p. 12. 

 Oncostoma olivacea, Lawr. Ann. L. N. Y. vii. p. 473 (Panama). 

 Oncostoma olivaceum, Scl. et Salv. P. Z. S. 1864, p. 358 (Panama) ; 

 iid. Nomencl. p. 45. 



Above uniform rather yellowish olive ; wings and tail blackish : 

 wing-coverts tipped and outer secondaries edged with yellowish ; 

 primaries and rectrices narrowly margined with olive : beneath 

 uniform yellowish, passing into olivaceous at the sides ; under wing- 

 covorts sulphur-yellow ; bill corneous ; feet pale brown : whole 

 length 3 - 4 inches, wing 1"7, tail 1*4. 



Ihd). Panama. 



Easily known from 0. cinereigulare by its uniform yellowish 

 under surface. 



a. Jad.sk. Panama (McLeannan). Salvin-Godman Coll. 



b. Ad. sk. Panama (McLeannan). Selater Coll. 



