99 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Adult male.—Wing 261-273 (267.5); tail, 132-139 (134.1); exposed 
culmen, 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 
culmen, 44-53.5 (49.5); tarsus, 110-122 (116.4); middle toe, 38-48 
(40.5).° 
Southern Mexico, in States of Vera Cruz (Misantla; Tlalcotalpam : 
Pasa Nueva), Oaxaca (Tapana; Huilétepec; Ishuatan), and Chiapas 
(Tonalé), and southward through Guatemala (San Gerénimo; 
Huamuchal), Honduras (La Brea; Nacaome; plain of Comayégua) 
and Nicaragua (Sucuy4; Jalapa; San Juan del Norte) to western 
Costa Rica (Guanacaste; San José): 
Charadrius bistriatus WAGLER, Isis, 1829, 648 (Mexico). 
CG[dicnemus] bistriatus Gray, Gen. Birds, iii, 1844, 535. 
[Gdicnemus] bistriatus Bonaparte, Compt. Rend., xlili, 1856, 416.—ScLatER 
and Satvin, Nom. Av. Neotr., 1873, 142, part (Mexico; Central America).— 
Suarrz, Hand-list, i, 1899, 172 part (Central America).—Forszs and Rosi- 
son, Bull. Liverp. Mus., ii, 1899, 59, part (Guatemala). 
CGdicnemus bistriatus OwEN, Ibis, 1861, 68: (San Geronimo, Guatemala; descr. 
eggs).—Saxvin, Ibis, 1861, 356 (Vera Paz, Guatemala); 1865, 198 (Huamu- 
chal, Guatemala).—Sctater, Proc. Zool. Soc. Lond., 1865, 397 (Vera Cruz, 
Mexico).—SciaTer and Satvin, Exotic Orn., 1867, 60, part (Mexico; Guate- 
mala; Honduras).—SrrBoum, Geog. Distr. Charadriide, 1887, pp. xv, 85, 
a Six specimens. + Four specimens. 
Ex- * 
Locality. Wing. | Tail. | posed | Tarsus.| Middle 
culmen Oe. 
MALES. 
Four adult males from southern Mexico..........2..-222.--08- 267.2 | 133 52.1] 114.2 42.1 
* One adult male from central Guatemala ............2..2-2-2---- 263 133. 5 49 121 38 
-One adult male from northern Nicaragua..............-...-.:.| 278 139 49 121 45 
One adult male from Venezuela (@. b. vocifer) -..| 246 124 44.5] 103 33 
Two adult males from Amazonas (Sierra de Lua and Boa Vista 
(Bedi QOCU CT) aac. scinoreonexesencesa gece geeeeyesesessesaes 235.5 | 120 44.7) 105 35.5 
FEMALES, 
Three adult females from southern Mexico.................-..- 262.3 | 128.3 47.5 | 114.5 39.8 
One adult female from northern Nicaragua...............2--..- 261 128. 5 53.5) 122 42.5 
One adult female from Amazonas (Sierra de Lua) (Gi. b. vocifer) | 246 128 48 107 38 
Three adult females of @. dominicensis from Santo Domingo...| 210 104.3 42.2 92.3 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 
cinnamomeous or avellaneous hue, in this respect resembling South American 
examples (. 6. 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. 
