22 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult male. —Wing 261-273 (267.5); tail, 132-139 (134.1) ; exposed 

 ciilmen, 49-53 (51.1); tarsus, 113-121 (116.5); middle toe, 38-45 

 (41.9).« 



Adult female.— Wing, 255-269 (262); tail, 124-132 (128.4); exposed 

 culnien, 44-53.5 (49.5); tarsus, 110-122 (116.4); middle toe, 38-43 

 (40.5).'' 



Southern Mexico, in States of Vera Cruz (Misantla; Tlalcotalpam; 

 Pasa Nueva), Oaxaca (Tapana; Huilotepec; Ishuatan), and Chiapas 

 (Tonala), and southward through Guatemala (San Geronimo; 

 Huamuchal), Honduras (LaBrea; Nacaome; plain of Comayagua) 

 and Nicaragua (Sucuya; Jalapa; San Juan del Norte) to western 

 Costa Rica (Guanacaste; San Jose): 



Charadrius bistriatus Wagler, Isis, 1829, 648 (Mexico). 



CE[dicnemus] bistriatus Gray, Gen. Birds, iii, 1844, 535. 



[CEdicnemus] bistriatus Bonaparte, Compt. Rend., xliii, 1856, 416. — Sclater 

 and Salvin, Nom. A v. Neotr., 1873, 142, part (Mexico; Central America). — 

 Sharpe, Hand-list, i, 1899, 172 part (Central America). — Forbes and Robin- 

 son, Bull. Liverp. Mus., ii, 1899, 59, part (Guatemala). 



(Edicnemus bistriatus Owen, Ibis, 1861, 68 (San Geronimo, Guatemala; descr. 

 eggs). — Salvin, Ibis, 1861, 356 (.Vera Paz, Guatemala); 1865, 198 (Huamu- 

 chal, Guatemala). — Sclater, Proc. Zool. Soc. Lond., 1865, 397 (Vera Cruz, 

 Mexico). — Sclater and Salvin, Exotic Om., 1807, 60, part (Mexico; Guate- 

 mala; Honduras). — Seebohm, Geog. Distr. Charadriidse, 1887, pp. xv, 85, 



a Six specimens. 



& Four specimens. 



Locality. 



MALES. 



Four adult males from southern Mexico 



One adult male from central Guatemala 



One adult male from northern Nicaragua 



One adult male from Venezuela (CB. 6. vocifer) 



Two adult males from Araazonas (Sierra de Lua and J5oa Msta) 

 ((E. b. vocifer) 



FEMALES. 



Three adult females from southern Mexico 



One adult female from northern Nicaragua , 



One adult female from Amazonas (Sierra de Lua) ((E. 6. vocifer) 

 Three adult females of (E. dominicensis from Santo Domingo.. . 



E.x- 



posed j Tarsus, 

 culmen. 



52.1 

 49 

 49 

 44.5 



114.2 

 121 

 121 

 103 



44.7 105 



47.5 

 53.5 



114.5 

 122 

 107 

 92.3 



Middle 

 toe. 



42.1 

 38 

 45 

 33 



35.5 



39.8 

 42.5 

 38 

 35.8 



Besides having the tarsus much longer (both relatively and absolutely) Central 

 American specimens have the upper parts more broadly striped with a more 

 ci nnamomeous or avcllaneous hue, in this respect resembling South American 

 examples {CE. b. vocifer), but in the color of the chest they agree better with 

 Mexican specimens. It will probably be necessary to separate the Central Ameri- 

 can representatives of the species subspecifically, but a larger series of specimens 

 hould first be examined. 



