BIRDS OF NORTH AND MIDDLE AMERICA. 



13 



Jacana gymnostoma American Ornithologists' Union, Check List, 1886, and 

 2d ed., 1895, no. 288, part. 



J[acxina\ gymnostoma Ridgway, Man. N. Am. Birds, 1887, 183, part. 



Jacana spinosa gymnostoma Todd, Ann. Carnegie Mus., x, Jan. 31, 1916, 220 

 (Mexico; crit.). 



Parra cordifera Lesson, Rev. Zool., 1842, 135(Acapulco, Guerrero; coll. Paris Mus., 

 fide Des Murs, Icon. Orn.). — Des Murs, Icon. Orn., Liv. 7, Dec, 1846, pi. 42. 



Jacana cordifera Des Murs, Icon. Orn. (184G?), table of contents. 



Asarcia variabilis (not Parra variabilis Linnaeus) Sharpe, Cat. Birds Brit. Mus., 

 xxiv, 1896, 86, part (Brownsville, Texa.s; Mazatlan and Presidio de Mazatlan, 

 Sinaloa; Zapotlan, Jalisco; Topic, San Bias, and Santiago, Tepic; Acapulco, 

 Guerrero; Tampico and Altaraira, Tamaulipas; Jalapa and Jomotla, Vera 

 Cruz; Teapa, Tabasco; Buctzotz and Cozumel Island, Yucatan). — Salvin and 

 GoDMAN, Biol. Centr.-Am., Aves, iii, 1903, 342, part, (lower Rio Grande 

 Valley, Texas: Mazatlan; Manzanillo Bay, Rio Zacatulo, and Rio de 

 Coahuyana, Colinia; Guanajuato; Guadalajara, Zapotlan, and Jalisco, Jalisco; 

 Lake Patzcuaro, Michoacan; Acapulco, Guerrero; Altamira and Tampico, 

 Tamaulipas; Jalapa, Santa Ana, Jonatal, Cosamaloapam, and Alvarado, Vera 

 Cruz; Laguna de Epatlan, Puebla: Santa*Efigenia and Zonatepec, Oaxaca; 

 Teapa, Tabasco; Buctzotz, Shkolak, and Cozumel Island, Yucatan; Tonala, 

 Chiapas?). 



[Asarcia] variabilis Sharpe, Hand-list, i, 1899, 169, part. 



JACANA SPINOSA VIOLACEA (Cory). 



WEST INDIAN JACANA. 



Similar to J. s. spinosa but adults more richly colored, the greenish 

 black more abruptly defined against the richer maroon color of breast, 

 etc.,theback deeper or richer maroon, and frontal shield averaging larger. 



AdiiU male.— Wing, 111-137 (119.2); tail, 37-45 (40); bill, from 

 nostril, 16.5-19 (17.5), from posterior margin of frontal shield, 39-49 

 (41.9); tarsus, 48-59.5 (53.5); middle toe, 48-58 (53.1)." 



Adult female. —Wing, 118-140 (131.1); tail, 41-48 (44.5); bill from 

 nostril, 17-20 (18.5), from posterior margin of frontal shield, 41.5-50 

 (46.4); tarsus, 55-59 (57.1); middle toe, 51-58.5 (56.2).^ 



Mr. Todd 'a averages are as follows: 



Adult males (ten specimens). — Wing, 116.5; tail, 40; "bill," 30; tarsus, 51.5. 



Adult females (ten specimens). — Wing, 132; tail, 44; "bill," 33; tarsus, 55.5. 



