AVES PTEROPTOCHID^. 747 



culmen, .52; tail, .80; tarsus, 1.40. Abov'e rich olive-brown, somewhat 

 grayer on the head ; throat and breast orange tawny, rest of under parts 

 barred buffy white and black, light bars becoming browner on flanks and 

 under tail coverts an orange tawny stripe from lores over the eye, 

 lower lid buffy white, ear coverts gray with white shaft lines, wings and 

 tail olive brown, gray bases to body plumage are everywhere in evidence. 

 Legs and feet dusky, bill blackish. 



Geographical Range. — Chili south to Straits of Magellan. 



The specimens upon which Dr. Wetmore based his P. r. nciuorivaga, 

 one of which I have seen, are unquestionably darker. Dr. C. E. Hell- 

 mayr regards both this and Mr. Peters' race P. r. hylonympJia as indis- 

 tinguishable from P. rubeciila and pending further studies of the group I 

 place them all together, my description being from one of Mr. Peters' 

 specimens. Mr. Peters says: "The babblers are characteristic birds of the 

 forested slopes about Lake Nahuel Huapi. Their favorite haunts are 

 small dense tangles or thickets which have grown up over rotten logs. 

 Here they live in the half dark interior, emerging but seldom and quickly 

 scurrying back at the approach of danger. Their note is a loud, chuck- 

 ling laugh, given generally just as one is passing by a thicket, and is 

 most startling," (Bull. Mus. Comp. Zool. Ixv. No. 9, p. 311.) 



The Princeton Expeditions did not come across this species. 



Genus RHINOCRYPTA Gray. 



Type. 



Rhinocrypta Gray, List Genera of Birds, 1841, p. 25 Rliiiioniya lanceolata. 

 RJiinomya Iss. Geoffr. and d'Orbigny, Mag. de 



Zool. 1832, Ois. pl. iii (nee Robineau Des- 



vordy, 1830) RJiinouiya lanceolata. 



RhinornisQAsltX, Naturg. Thierreichs Hoh. Schul. 



1848, p. X Rhinoniy a lanceolata. 



Geographical Range. — Northern Patagonia; Argentina north to Cata- 

 marca and southern Brazil. 



Rhinocrypta lanceolata (Geoffr. & d'Orb.). 

 RJiinomya lanceolata Geoffrey and d'Orbigny, Mag. de Zool. 1832, Ois 

 pl. iii (Rio Negro). 

 Description. — Male adult, P. U. O. C. 8972, Rio Negro, N. Patagonia. 

 July, 1896. From the collection of the Museo La Plata. Total length, 



