6 



NORTH AMERICAN FAUNA 65 



brown than in asiatica. The latter has more extensive purple that 

 extends farther back on the hindneck. In most of the specimens of 

 peninsulae seen the underparts are slightly paler, and some have a 

 cinnamon tone to the throat and upper breast that occurs in rel- 

 atively few asiatica. 



DESCRIPTION 



Type, Field Mus. Nat. Hist. No. 13223, adult male, San Felipe, 

 near the mouth of the Rio Lagartos, northeastern Yucatan, collected 

 June 6, 1893, by W. W. Brown. Crown and hindneck vinaceous drab; 

 back drab; tertiaries buffy brown; middle rectrices olive brown; throat 

 wood brown basally with cinnamon tips; breast light drab; abdomen 

 pearl gray; and flanks pale olive gray. 



MEASUREMENTS 



Males (14 specimens): wing 148.5-156.3 mm. (av. 151.5), tail 

 97.1-108.0 (103.5), and culmen 18.0-21.3 (20.2). Females (18 speci- 

 mens): wing 143.0-155.0 mm. (av. 148.6), tail 93.0-104.0 (99.6), and 

 culmen 18.4-21.7 (20.0) . Most of these specimens were taken during 

 the breeding season. 



Ridgway (1916, p. 379) gave the average measurements of wing, tail, 

 and culmen of 9 males from Yucatan as 156.4, 103.6, and 19.7 mm., 

 and of 7 females as 149.6, 99.4, and 20.2 mm. Judging from the large 

 average wing length there was no sorting of these specimens accord- 

 ing to season, and apparently several wintering asiatica males were 

 included. 



RANGE 



The only breeding specimens seen were from areas of Mexico includ- 

 ing the northern half of Yucatan, coastal localities in Quintana Roo, 

 the adjacent islands of Cozumel and Mujeres, and northern Campeche. 

 A specimen from Jaina, Campeche, taken on June 15, 1900, by 

 Nelson and Goldman, is referable to this form. The only breeder 

 taken by Paynter (1955, p. 118) was a male collected at Vigia Chico, 

 Quintana Roo, March 30, 1949. That locality is adjacent to Bahia de 

 la Ascension. Additional specimens from southern Yucatan and Quin- 

 tana Roo are needed for clarification of the extent of the breeding 

 range. 



Based on the relative scarcity of this race in northern Yucatan dur- 

 ing the winter, I believe that most of these birds winter farther 

 south in the State, and possibly also in arid interior valleys of eastern 

 Guatemala and Honduras. If so, peninsulae would be associated in 

 some localities with a subspecies to be described further on, as well 

 as with australis. 



REMARKS 



The white-winged dove was listed for Mujeres and Cozumel Islands, 

 and was considered a well-known species on the mainland by Salvin 



