BIRDS OF NORTH AND MIDDLE AMERICA 81 



Range. — Known only from the type locality. Uncertainly re- 

 corded from Mazatlan, Sinaloa. 



Tyfe locality. — San Bias, Nayarit, Mexico. 



(?) Rallus elegans Lawrence, Mem. Boston Soc. Nat. Hist., ii, 1874, 311 



(Mazatlan, Sinaloa). 

 (?) [Rallus elegmis] b. var. tenuirostris Ridgway, Bull. Nutt. Orn. Club., v, 



1880, 139, part (Mazatlan). 

 (?) Rallus tenuirostris Salvin and Godman, Biol. Centr.-Amer., Aves, iii, 1903, 



316 part (Mazathtn).— Cooke, U. S. Dept. Agr. Bull. 128, 1914, 17, part 



(Mazatlan). 

 Rallus nayaritensis McLeixan, Proc. California Acad. Sci., ser. 4, xvi, 1927, 9 



(orlg. descr. ; San Bias; Nayarit, Mexico). — van Rossem, Trans. San Diego 



Soc. Nat. Hist., vi, 1930, 236 (crit.). 

 Rallus oisoletus nayaritensis van Rossem, Trans. San Diego Soc. Nat. Hist., 



vi, 1930, 235. 

 Rallus elegans nayaritensis Peh'ers, Cbeck-list Birds of World, ii, 1934, 160. 

 Rallus longirostn's nayaritensis Obebholsee, Proc. U. S. Nat. Mus., Ixxxiv, 1937 



343 (monogr. ; crit.). 



RALLUS LONGIROSTRIS TENUIROSTRIS Ridgway 



Mexican Clapper Rail 



Adult (sexes alike). — The most rufescent on the flanks of all the 

 races of the species, these parts being pinkish umber broadly barred 

 with white. Two phases occur, as follows : 



Daek-breasted phase: Forehead, crown, and occiput Dresden 

 brown to Front's brown, the feathers with shiny black shafts ; nape 

 and hind neck paler and slightly more grayish, the feathers dark 

 sepia along the shafts ; scapulars, interscapulars, feathers of the back, 

 i-ump, and upper tail coverts bister to mummy brown very broadly 

 edged with tawny-olive to grayish olive, the medial dark areas very 

 greatly reduced on the rump and upper tail coverts; upper wing 

 coverts deep snuff brown with a slight grayish wash to bright Sayal 

 brown; bend of wing whitish; remiges dull bister, the innermost 

 secondaries like the long scapulars ; rectrices like their upper coverts ; 

 supraloral line whitish washed with buff and rusty ; lores, cheeks, and 

 auriculars Saccardo's umber washed with grayish drab; malar stripe 

 broad and bright light pinkish cinnamon to pinkish cinnamon ; chin 

 and upper throat white; lower throat, breast, and upper abdomen 

 cinnamon, with or without a very faint vinaceous-russet tinge; sides, 

 flanks, and vent Saccardo's umber with a pinkish or pinkish cin- 

 namon wash, the wash sometimes so pronounced as to make the light 

 cross bars pale pinkish cinnamon instead of white; middle of lower 

 abdomen pale pinkish buff ; thighs anteriorly pale pinl^ish buff indis- 

 tinctly barred with pale pinkish drab, dusky drab posteriorly ; under 

 wing coverts like the flanks; under tail coverts largely white, the 



