412 Recent Literature. Ljuly 



characteristic winter species are included in the hsts as well as those that 

 breed. In discussmg barriers the author points out that the degree of 

 difference between mammals occurring on the two sides of the Colorado, 

 varies directly as the extent to which the river proves a barrier to their 

 dispersal. He considers that the ranges of all birds and mammals will be 

 accounted for by one or more of the several kinds of barriers which he 

 tabulates, i. e. (1) Tangible (mechanical), land to aquatic species or bodies 

 of water to terrestrial; (2) Intangible (non-mechanical); (a) Zonal (tem- 

 perature), (b) Faunal (humidity), (c) Associational — food supply, breed- 

 ing places and temporary refuges. He also believes " that only through 

 the agency of barriers is the multiphcation of species, in birds and mam- 

 mals, brought about." 



The annotated hst includes 150 species or subspecies and is full of original 

 matter relative to the distribution and relationship of races. Some of the 

 most interesting notes are those relating to the tendency to red in place of 

 yellow in the wings and tail of Colaptes chrysoides which the author con- 

 siders is not an evidence of hybridism; also the discussion of Phalcenoptilus, 

 two forms of which were present, one resident, the other a winter visitant, 

 and the results of his study of Geothlypis trichas, which lead to the conclu- 

 sion that there is no recognizable Pacific coast race arizela. 



Dr. Grinnell's recent pubhcations set a very high standard, and one 

 which writers of faunal papers would do well to follow. The day when a 

 mere annotated hst forms an acceptable contribution to North American 

 ornithology is rapidly passing and an author will soon be required to be 

 versed in the various problems of evolution and capable of using his data 

 in their elucidation. — W. S. 



Bangs and Phillips on Birds from Yunnan.' — A collection of 1376 

 bird skins made by a Japanese collector in southern Yunnan has recently 

 been acquired by the Museum of Comparative Zoology and a list of the 

 240 species, with comments, is here presented. The following are described 

 as new: Niltava sundara denotata (p. 280), Mengtsze; Cryptolopha trivirgatus 

 eiunddus (p. 282), Mengtsze; Pericrocotus brevirostris ethologus (p. 282), 

 Hsienchan, Hupeh, China, W. R. Zappey; P. b. flavillaceus (p. 283), 

 KooUoo Valley, northern India; Spizixus canifrons ingrami (p. 285), 

 Mengtsze; lanthocincla lustrabila (p. 285), Loukouchai; Pomatorhinus 

 macdellandi odious (p. 286), Mengtsze; P. ruficollis reconditus (p. 286), 

 Mengtsze; Aclinodura ramsayi yunnanensis (p. 288). Loukouchai; 

 Enicurus guttatus bacatus (p. 292), Loukouchai; lanthia pradica (p. 292), 

 Loukouchai; Buchanga leucogenys cerussata (p. 302). Ichang, Hupeh, 

 China, W. R. Zappey.— W. S. 



I Notes on a Collection of Birds from Yunnan. By Outram Bangs and John C. 

 Phillips. Bull. Mus. Comp. Zool., Vol. LVIII. No. 6, April, 1914, pp. 267-302. 



