1^2 Ki^-L^s, Recently Described Norik American Birds. |_ April 



REPUBLICATION OF DESCRIPTIONS OF NEW SPE- 

 CIES AND SUBSPECIES OF NORTH AMERICAN 

 BIRDS. NO. II. 



BY J. A. ALLEN. 



The first series of these descriptions was published in ' The Auk ' 

 for October, 1899 (XVI, pp. 338-350), in response to requests 

 therefor, as there stated. The first instaUment covered the years 

 1897, 1898, and most of 1899, and included those added in the 

 Ninth Supplement to the Check-List (see Auk, XVI, 1899, pp. 

 97'~i33)- 'The present installment covers the year 1900, with a 

 few species published in the latter part of 1899. 



In this ' republication,' as explained in the introduction to the 

 first installment, the original diagnoses or descriptions are given in 

 full, in the exact words of the author, unless otherwise indicated 

 by the omission of marks of quotation, with such additional 

 remarks as are necessary to a proper presentation of the case. 



Colymbus dominicus brachypterus {Chapman). 



Colymbus dominicus brachypterus Chapman, BuU. Am. Mus. Nat. Hist. 

 XII, 1S99, 256, Dec. 23, 1S99. 



" Char, siibsp. — Similar to Colymbus dominicus Linn., but with 

 shorter wings and bill, less fuscous on the sides and flanks, and whiter 

 underparts. 



*' Description of type. — (No. 11, Coll. George B. Sennett, male, Lomita 

 Ranch, Lower Rio Grande, Texas, April 27, 1S78. Collected by George 

 B. Sennett.) — Head and neck all around plumbeous, the crown greenish ; 

 the throat black, some of the feathers tipped with whitish ; back fuscous 

 with slight greenish reflections ; wing-coverts, tertials, and exposed part 

 of outer primaries fuscous ; basal portion of inner web of first primary 

 white, this white increasing in extent on each succeeding feather until it 

 wholly occupies the seventh to twelfth feathers, when it decreases and is 

 replaced by fuscous ; neck slaty, breast washed with brownish, fainter on 

 the sides ; sides and flanks washed with fuscous ; rest of underparts silvery 

 white, through which the darker bases of the feathers show only slightly. 

 Wing, 3.80 ; tarsus, 1.25 ; middle toe, 1.78; culmen, .82 ; depth of bill at 

 nostril, .30 in. 



'^ Description of female, No. 12, Collection of George B. Sennett, Lomita, 



