Carriker : List of the Birds of Costa Rica. 645 



381. Sclerurus canigularis Ridgway. 



Scleriiriis canigularis Ridgway, Proc. U. S. Nat. Mus., XI, 1888, 542 (Turri- 

 alba, Costa Rica, August, 1886 [J. Cooper]; coll. U. S. Nat. Mus.); XII, 

 1889, 24. — Salvin and Godman, Biol. Centr.-Am., Aves, II, 1891, 166 

 (Costa Rica). — Ridgway, Proc. U. S. Nat. Mus., XVI, 1893, 613 (Buena 

 Vista, Aug., 1892 [Castro and Fernandez]). 



Sclerurus albigularis Sclater, Cat. Birds Brit. Mus., XV, 1890, 114, part (in 

 synonymy). 



Bangs Collection : Tenorio, Cerro de Santa Maria and Cariblanco de 



Sarapiqui (Underwood). Eight skins. 



This Sclerurus has been taken only in Costa Rica, but outside of the 

 eight skins taken by Underwood in 1908 there are but two specimens 

 in existence, including the type. There has been some doubt as to the 

 distinctness of this bird from S. albigularis of South America, but 

 after examining the large series in Mr. Bangs collection, it is very evi- 

 dent that it is perfectly distinct, not being related even subspecifically 

 to that species. The bird seems to be confined to the northern half of 

 the country and to be most abundant in the mountains of the north- 

 western section, north of the Gulf of Nicoya, although the type came 

 from the Caribbean slope at about 2,000 feet. I have never seen the 

 bird in life, but I presume its habits are similar to those of S. guate- 

 malensis. 



382. Sclerurus mexicanus Sclater. 



Sclerurus mexicanus Sclater, P. Z. S., 1856, 290 (Cordova, Mexico [Salle]); 

 Cat. Birds Brit. Mus., XV, 1890, 115 (Mexico to Amazonia; no Costa Rican 

 specimens). — Salvin and Godman, Biol. Centr.-Am., Aves, II, 1891, 167 

 (no Costa Rican specimens or references). 



Bangs Collection : Cariblanco de Sarapiqui, one cf (Underwood). 

 Acad. Nat. Sci. of Philadelphia : Costa Rica (Underwood), one speci- 

 men without locality. 

 Fleming Collection: Cariblanco de Sarapiqui (Underwood), one 

 specimen. 



There are no authentic published records for the occurrence of this 

 species in Costa Rica, but I have examined two skins from that 

 country, collected by Underwood, while there is a third in Mr. Flem- 

 ing's collection from Cariblanco which I have not seen. It is very 

 strange that the bird should be fairly common in Guatemala and 

 Mexico and so rare between Guatemala and Panama. 



