108 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



AMAUROLIMNAS CONCOLOB CONCOLOR (Gosse) 



Jamaican Unifoem Cbake 



Adult (sexes alike). — Forehead and anterior part of crown, lores, 

 superciliary stripe, cheeks, auriculars, sides of neck, and the upper 

 wing coverts Brussels brown to ruf escent Sudan brown ; hind crown, 

 occiput, nape, scapulars, interscapulars, back, rump, upper tail 

 coverts, and rectrices rufescent olive sepia, more rufescent on the 

 rump, tail coverts, and rectrices than in the more anterior parts, 

 remiges dull sepia externally edged with Sayal brown; chin and 

 upper throat like the cheeks but paler, more whitish; lower throat, 

 and entire underparts of body rich tawny to hazel ; iris "vermillion ; 

 beak yellowish-green, blackish above; feet dull purplish-crimson, or 

 pink." (Gosse.) 



Other plumages unknown. 



Adult male. — Wing 125, tail 49, exposed culmen 27.5, tarsus 39, 

 middle toe without claw 28 mm.' 



Adult female. — ^Wing 119, tail 47, exposed culmen 29.5, tarsus 41, 

 middle toe without claw 33 mm.' 



Range. — Formerly occurred on Jamaica, now extinct. Specimens 

 taken at Basin Spring; near the Black Eiver (Elim Estate) ; Span- 

 ish Town. 



Tyfe locality. — Jamaica. 



Rallus concolor Gosse, Birds Jamaica, 1847, 369 (Basin Spring, Jamaica) ; 

 Illustr. Birds Jamaica, 1849, pi. 102. — Ai^recht, Journ. fiir Orn., x, 1862, 

 206 (Jamaica).— March, Proc. Acad. Nat. Sci. Philadelphia, 1864, 69 

 (Jamaica). 



Eallina concolor Reichenbach, Handb. Fulicariae, 1851, pi. 322, fig. 2577. 



Porzana concolor Sclatee and Salvin, Proc. Zool. Soc. London, 1868, 452, part 

 (crit. ; Jamaica). — Coey, Auk, v, 1888, 54 (Jamaica; synonymy; descr.) ; 

 Birds West Indies, 1889, 255; Cat. Birds West Indies, 1892, 2, 91, 129 

 (Jamaica). — Sclatee, Eev. List Birds Jamaica, 1910, 19. 



[Porzana] concolor Sclatee and Salvin, Nom. Av. Neotr., 1873, 140, part 

 (Jamaica).— Cost, List Birds West Indies, 1885, and rev. ed., 1886, 30 

 (Jamaica). 



P[orzana] concolor Newton (E. and A.), Handb. Jamaica, 1881, 114. 



A[maurolimnas1 concolor Shaepe, Bull. Brit. Orn. Club, i, No. 5, 1893, xxviii. 



AmauroUmnas concolor Shabpb, Cat. Birds Brit. Mus., xxiii, 1894, 87, part 

 (Jamaica).— Salvin and Godman, Biol. Centr.-Amer., Aves, iii, 1903, 321, 

 part (Jamaica).— Cooke, U. S. Dept. Agr. Bull. 128, 1914, 26, part (Ja- 

 maica). — Naumbubg, Bull. Amer. Mus. Nat. Hist., Ix, 1930, 72, part 

 (Jamaica). 



[Amuurolimnas] concolor Shaepe, Hand-list, 1, 1899, 101, part (Jamaica). 



Amaurolknnas concolor concolor Petebs, Check-list Birds of World, ii, 1934, 

 171 (formerly Jamaica; now extinct). 



" One specimen of each sex examined. Four unsexed birds have the following 

 dimensions: Wing 116, 118, 122, 125.5; tail 47.5, 48, 49, 51; exposed culmen 

 25, 25.5, 29 ; tarsus 40, 42, 44, 44 ; middle toe without claw 26, 29, 80.5, 31 mm., 

 respectively. 



