592 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



[Nyctibius] jamaicengis Bonaparte, Consp. Av., i, 1850, 58 (Jamaica). — Geat, 

 Hand-list, i, 1869, 56, no. 608, part (Jamaica). — Sclatee and Salvin, Nom. 

 Av. Neotr., 1873, 95, part (Jamaica).— Cokt, List Birds West Ind., 1885, 16 

 (Jamaica). — Shakpe, Hand-list, ii, 1900, 79, part (Jamaica). 



Nlyctibius] jamaicensis Newton (A. and E.), Handb. Jam., 1881, 108. 



N{yctibms] jamaicensis (typicus) Haktbht, Tierreich, Podarg., Caprim., Macropt., 

 1897, 16, part (Jamaica). 



(?)Nyctibius pallidm Gossb, Birds Jam., 1847, 49 (= albinotic specimen ?); 

 lUustr. Birds Jam., 1849, pi. 7.— Bonaparte, Consp. Av., i, 1850, 58.— Al- 

 beecht, Joum. fur Orn., 1862, 199.— March, Proc. Ac. Nat. Sci. Phila., 

 1863, 286.— ScLATBB, Proc. Zool. Soc. Lond., 1866, 119; Revised List Birds 

 Jam., 1910, 10.— CoET, Auk, iii, 1886, 339; Birds West. Ind., 1889, 134; Cat. 

 West Ind. Birds, 1892, 124 (crit.).— Scott, Auk, ix, 1892, 276 (crit.). 



C!)[Nyctibius] pallidus Gray, Hand-list, i, 1869, 56, no. 610.— Coet, List Birds 

 West Ind., 1885, 16. 



(?) Nlyctibius] pallidm Newton (A. and E.), Handb. Birds Jam., 1881, 108. 



Nlyctibiusi g[riseus] jamaicensis Ridowat, Proc. Biol. Wash., xxv, May 4, 1912, 

 91, in text. 



NYCTIBITJS GRISEUS MEXICANUS (Nelson). 



MESICAir POTOO. 



Similar to N. g. jamaicensis but larger and slightly paler. 



Adult male. — ^Length (skin), 420; wing, 305; tail, 220; exposed 

 culmen, 27; tarsus, 13; middle toe, 23." 



Adult female. — ^Length (skin), 435; wing, 304; tail, 216; exposed 

 culmen, 25.5; tarsus, 13; middle toe, 24." 



Southeastern Mexico, in States of Puebla (Metlaltoyuca), Mexico 

 (VaUey of Mexico), Vera Cruz (Jalapa; Mirador; La Antigua), 

 Oaxaca (Santa Efig^nia; Tehudntepec), and Tabasco (Teapa) to 

 Guatemala (Guatemala City; Vera Paz; Tactic); Honduras (Ruatan 

 Island) ? Western Mexico, in State of Sinaloa (MazatMn; Presidio de 

 Mazatldn)?* 



Nyctibius jamaicensis (not Caprvmulgus jamaicensis Gmelin) Sajlvin, Ibis, 1866, 

 194 (Guatemala City, Guatemala); (?) 1889, 368 (Ruatan I., Honduras).— 

 Lawrence, Bull. U. S. Nat. Mus., no. 4, 1876, 32 (Santa Efigenia, Oaxaca). — 

 Hbebara, La Naturaleza, (2), i, 1891, 322 (Valley of Mexico). — Hartert, 

 Cat. Birds Brit. Mus., xvi, 1892, 625, part (Jalapa and La Antigua, Vera Cruz; 

 Teapa, Tabasco ;Tehuantepec, Oaxaca ;Mazatlan, Sinaloa). — Salvin and God- 

 man, Biol. Centr.-Am., Aves, ii, 1894, 399, part (Presidio deMazatlan; Valley of 

 Mexico ; Jalapa, Mirador, and La Antigua, Vera Cruz ; Santa Efigenia, Oaxaca; 

 Teapa, Tabasco; near Guatemala City, Vera Paz, and Tactic, Guatemala; 

 Ruatan I., Honduras?). 



[Nyctibius] jammcensis Gray, Hand-list, i, 1869, 56, no. 608, part (Guatemala). — 

 Sclatbr and Salvin, Nom. Av. Neotr., 1873, 75, part (Mexico). — Sharps, 

 Hand-list, ii, 1900, 79, part (Mexico). 



Nlyctibius] jamuicensus (typicus) Hartert, Tierreicb, Podarg., Caprim., Ma- 

 cropt., 1897, 16, part (Mexico). 



o One specimen, from Metlaltoyuca, Puebla (the male, type of the subspecies). 

 ^ Specimen from western Mexico not seen by me; possibly a different subspecies. 



