Carriker : List of the Birds of Costa Rica. 335 



southern and western slopes are cultivated or made into pastures up to 

 7,000 or 8,000 feet, but the eastern and northeastern slopes are a mass 

 of virgin jungle. Underwood and Alfaro are about the only collectors 

 who have visited the region. Mr. Underwood says his collecting was 

 done at about 5,000 feet on the southwestern slope. 



Barranca (Bajo de la); Barranca de Puniarenas : — Situated on 

 the railway between Puntarenas and Esparta, at a point just below the 

 crossing of the Rio Barranca. There has been a great deal of confu- 

 sion as to the locality "Barranca," all authors supposing it to refer 

 to the above-mentioned locality, while in reality most of the older 

 records, especially those of Frantzius and Carmiol refer to another 

 Barranca (see following locality). All of Underwood's localities refer 

 to this one. It is not more than 200 feet above sea-level, while 

 Frantzius distinctly refers to the "cool climate of Barranca," meaning 

 the following locality. 



Barranca : — On the edge of a small stream of the same name to the 

 north of the road to San Carlos, and on the slopes of the Volcan de 

 Poas, and with an altitude of not less than 6,000 feet, probably more. 

 It is very probable that all of Frantzius' and Carmiol's records refer to 

 this locality, and possibly some of Zeledon's. 



Bebedero : — A small dirty village at the junction of the Rivers 

 Tenorio and Las Piedras, in Guanacaste, and not much above 

 sea-level. A great many specimens have come from this locality. 

 Arce collected here first, and in turn Underwood, Cherrie, Alfaro, 

 Lankester, and the writer. It is a region of grassy savannas, marshes, 

 and heavy forest, and a very good collecting-ground, although a rather 

 disagreeable place to work in. 



Bellavista : — (See Hervidero. ) 



Birris : — Name denoting the locality in the region of a small river 

 of the same name which flows through a very deep gorge into the Rio 

 Reventazon between Paraiso and Juan Vinas. The railway crosses 

 this gorge over a magnificent iron bridge over six hundred feet in 

 length. The altitude of the region referred to as Birris by Zeledon 

 and Cooper is about 3,000 to 3,500 feet above sea-level and on the 

 Caribbean slope. 



Boca de Matina : — The point at which the Matina River empties 

 into the Caribbean Sea, about eighteen miles northwest of Port Limon. 



Bolson : — A small village of about two hundred inhabitants in 

 Guanacaste on one of the large tributaries of the Rio Tempisque, of 



