RENDAHL, BIRDS FROM THE PEARL ISLANDS. 21 



Measurements : 



wing 305, tail 150, tarsus 32 mm. The bill is unfortun- 

 ately broken. 



Fam. Tinamidae. 

 20. Crypturus soui panamensis (Carriker). 



Crypturus soui modestus Bångs, Auk. XVIII, 1901, 25 (San Miguel) — Thayer 

 and Bajjgs, Bull. Mus. Comp. Zoöl. XLVI, 1905, 145 (San Miguel), 



Crypturus meserythrus Sal vin and Godman, Biol. Centr.-Am. Aves III, 1904, 

 453 (ref.). 



This species was not collected by Dr. Bovallius. 



The quoted authors (Bångs and Thayer 1. c.) say, that 

 they could detect no differences either in color or measure- 

 ments between the Tinamon of the Pearl Islands, of which 

 they had se ven specimens (6 ad. J", $ and 1 young S) and that 

 of the mainland. 



Carriker (An annotated list of the birds of Costa Rica 

 including Cocos Island. Ann. Carn. Mus. Vol. 6. 1910. 314) 

 gives (p. 378) the results of a comparision of skins of Crypturus 

 soui from different parts of IMiddle and northern South America. 

 He States «There are three very distinct races of this bird 

 ranging from Panama to Mexico, and two forms in the northern 

 part of South America». 



Of these, that which he names C. s. panamensis inhabits 

 Panama, differing from the South American forms by having 

 a dusky band across upper chest, from the northern forms 

 by the combination: pileum sooty-gray, lower parts quite 

 uniform cinnamon-brown. 



Carriker doesn't say if he too has seen skins from the 

 Pearl Islands, the type of his new subspecies is, however, from 

 Loma del Leon, Panama (coll. W. W. Brown), and Bångs 

 says (Auk, 1. c.) about a skin from San ^Miguel, that «It is just 

 like one of about the same age taken at Loma del Leon, Panama, 

 by Mr. Brown». 



Therefore I suppose, that the Tinamon from the Pearl 

 Islands as well as that from the Isthmus of Panama is to be 

 referred to C. s. panamensis. 



