Vol. XT Recent Literature. 343 



189.5 J 



Description of tyfe (coll. Am. Mus. No. 59,051, female, Princestown, 

 Trinidad, March 28, 1893, F. M. Chapman).— Crown and nape cinereous 

 washed with olive green, back bright olive green, wings and tail fuscous, 

 the exposed margins of the feathers olive green ; auriculars cinereous, 

 throat and upper part of the breast pale grayish white, rest of the under 

 parts bright yellow; bill horn-black, feet brownish black; wing, 2.40; tail, 

 2 25- exposed culmen, .50; height of bill at anterior margin of the nostril, 



.22 in. 



Basileuterus vermivorus olivascens subsp. 



nov. 



Char. Subsp.— Similar to B. vermivorus (Vieill.) but the bill averages 

 larger and the upper parts are constantly grayer. (Type, coll. Am. Mus. 

 No. 58,974, adult male, Princestown, Trinidad, March 1, 1893, F. M. 

 Chapman.) 



Myrmeciza longipes albiventris subsp. nov. 



Char sub^p.— Similar to M. longipes (Swains.), but somewhat smaller 

 and with the flanks and abdomen pure white, slightly or not at all washed 

 with cinereous. (Type, coll. Am. Mus. No. 59,329, adult male, Princes- 

 town, Trinidad, March 10, 1893, F. M. Chapman.) 



RECENT LITERATURE. 



Shufeldt on Fossil Birds from Oregon.— In a quarto memoir' of thirty- 

 five pages, with three plates, Dr. Shufeldt gives the final results of his 

 studies of several hundred fossil bones of birds, collected at Foss.l and 

 Silver Lakes, Oregon, by Professors Thomas Condon and E. D. Cope, 

 of which a preliminary account was given in the 'American Naturalist' 

 for April. 1S91 (PP. 359-362). "The Silver Lake Region of Oregon is 

 considered to be of the latest Tertiary formation of the horizon known 

 as the Equus Beds." About 50 species were recognized, of which 27 are 

 positively identified with species still existing in the region, 5 as prob- 

 ably identical with living species, and 17 as extinct, as follows :— 



' A Study of the Fossil Avifauna of the Equus Beds of the Oregon Desert. By 

 R. W. Shufeldt, M. D. Journ. Acad. Nat. Sci. Phila., Vol. XI, pp. 389 425, pH- 

 xv-xvii, 1892. 



