No. 1. Xt>trs on simir Aiinriciin Hi ids, chiijli/ X rot topical. 



By Outran Bangs \\i> Thomas E, Penard. 



In the present paper we deal chiefly with some neotropical birds, 

 erecting two new genera* describing one new species and five new 

 BubspecieSj and reviewing the forms of a number of species, involving 

 some changes and corrections in the nomenclature and synonymy of 

 several forms. 



All measurements are in millimeters; the tail is measured from the 

 base of the free tail feathers to the extreme tip. 



We arc indebted, for the loan of specimens, to Dr. Frank M. Chap- 

 man of the American Museum of Natural History, Mr. Charles B. 

 ( Dry of the Field Museum, Dr. Charles W. Richmond of the National 

 Museum, and Mr. W. E. Clyde Todd of the Carnegie Museum. 



A NEW SUBSPECIES OF CROTOPHAGA SULCIROSTRIS SWAINSON. 



CROTOPHAGA SULCIROSTRIS PALLIDULA, Subsp. nOV. 



Type.— M. C. Z. 217,148. Adult d 1 . Lower California: San 

 Jose del Cabo, 12 October, 1887. M. Abbott Frazar. 



Subspecific characters. — Similar to Crotophaga sulcirostris sulcirostris 

 Bwainson of Mexico, and of about the same size, but much paler and with less 

 purplish iridescence; the U-shaped iridescent markings of the back and breast 

 paler and duller greenish, not so brilliant; the dull purplish bronze of the head 

 :md neck of true sulcirostris replaced by paler, more grayish bronze; the 

 lustreless parts of the body-feathers grayish brownish black instead of dull 

 black. 



Measurements. — Type. Adult <? — wing, 143.0; tail, 186.0; 

 tarsus, 35.5; culmen, 27.5. 



Male (eight specimens) — wing, 137.0-143.0 (139.4); tail, 177.0- 

 1S8.0 (184.1); tarsus, 32.0-36.0 (34.6); culmen, 26.5-28.5 (27.3). 



Female (ten specimens) — wing, 133.5-142.0 (137.1); tail, 170.5- 

 L85.5 (178.8); tarsus, 31.0-35.0 (32.9); culmen, 25.0-27.0 (26.1). 



Sim < MENS examined. — C. s. .sulcirostris: — Texas: Lomita Ranch, 

 1 cf ; Brownsville, lcf, 19. Mexico: Monterey, 2 9 9,1 unsexed; 

 Tamaulipas, 4 cfcT; Escuinapa, 1 cf, 1 9 ; Plains of Colima, 1 9 ; 



