BANGS \\D PENARD: NOTES ON wm i;i< w BIRDS. 391 



to the M. C. /.. informed us that in his forthcoming paper on the 



birds <>1 I he Santa Malta region, lie intended to use t lie name cinen i- 



ventris for the Santa Maria lard. lie examined our series from Santa 



Marta, and pronoiineed it nuieli more uniform tlian the series in the 



Carnegie Museum, the latter series being much larger and containing 

 dark specimens verj close to, and almost indistinguishable from, some 

 Venezuelan examples. It was his opinion that Sclater's type really 



came from Santa Marta and represents an extreme variant close to the 



Venezuelan form. In view of this it. would he well to compare the 



type of P. cinereiventris Sclater with a large series from Santa Marta 

 before coming to a final decision in the matter. For the present, 



rather than rename the Santa Marta bird on the evidence at hand, 

 we retain for it the name cinereiventris. 



(*>. Pachykh amphus polychopterus costaricensis Chubb. 



Pachyrhamnhus costaricensis Chubb, Bull. Brit. orn. club, 1020, 40, p. 7t 

 (Bebedero, Costa Rica). Type. — British Museum, Salvin-Godman col- 

 lection. 



St bspecific characters. — Very similar to Pachyrhamphus polychopterus 

 cinereiventris Sclater of Santa Marta, but slightly smaller; under parts paler 

 gray with a more pearly tone — dee]) gull-gray (of Ridgway) rather than 

 light neutral gray. 



Measurements. — Male (twenty specimens) — wing, 68.0-74.5 

 (71.0); tail, 50.5-57.3 (54.2); tarsus, 17.5-19.0 (18.5); exposed 

 cnlmen, 12.0-13.0 (13.0). 



Female (ten specimens) — wing, 65.0-67.0 (66.3); tail, 50.0-52.5 

 (51.0); tarsus, 17.5-19.0 (18.4); exposed culmen, 11.5-13.5 (12.3). 



Range. — Panama, Costa Rica, western Nicaragua (Ridgway, 

 cinereiventris). 



Specimens examined. — Panama: Line of Panama Railroad, 1 cf , 

 1 9 ; Isthmus, Atlantic side, 1 c? ; Divala, 2 <? d\ 1 9 ; Boquete, 1 c? ; 

 Bogaba, 1 cT ; Chiriqui, 1 c? ; Focoume, 1 9 . Costa Rica: El General, 

 6 cfcf, 5 9 9 ; Bolson, 4 cf d* ; Boruca, 2 cfcf, 3 9 9 ; Pozo Azul, 

 1 cT, 1 9 ; Senorio, 1 cf ; Barranca Puntarenas, 1 cf 1 . Total, 34. 



Remarks. — P. p. costaricensis and P. ;;. cinereiventris are very close 

 subspecies, and not always distinguishable separately. In series, 

 however, the difference is perceptible, especially in the more pearly 

 gray appearance of the ( Osta Riean bird. 



