72 BULLETIN 50, TJNTTED STATEb NATIONAL MUSEUM 



aides nearly Isabella color with a wash of ciiraamon; wing coverts 

 decidedly more cinnamon than primaries and sparingly marked with 

 transverse bars of white ; upper surface of tail feathers bister brown 

 edged with hair brown; lower eyelid and supraloral stripe from 

 base of bill to top of orbit white ; lores, sides of head below and back 

 of eyes, down to a little below line of gape, plumbeous with a brown- 

 ish wash on lores; chin and throat pure white (this area extending 

 up nearly to line of gape but indistinctly suffused with buffy along 

 upper and posterior borders) ; sides of neck olivaceous bister brown 

 streaked with grayish and shading through grayish brown into dingy 

 cinnamon washed with dull gray along median line ; breast light cin- 

 namon rufous; sides of body and flanks varying from olive brown 

 to dark hair brown strongly marked with transverse white bars; 

 under tail coverts white with narrow shaft streaks of dusky brown" 

 (Nelson; orig. descr.). 



Wing, 143; tail 59.5, exposed cuhnen 53; tarsus 48; middle toe 

 without claw 48 mm. 



Range. — ^Known only from the type locality; probably limited to 

 the arid coast region of northwest Yucatan, possibly to Campeche as 

 well. 



Type locality. — ^Kio Lagartos, Yucatan, Mexico. 



Rallus pallidus Nelson, Proc. Biol. Soc. Washington, xviii, 1905, 141 (Bio 

 Lagartos, Yucatan; coU, Field Mus. Nat. Hist). — C!ooke, U. S. Dept Agr. 

 BuU. 128, 1914, 22 (range).— (?) Geiscom, Amer. Mus. Nov., No. 235, 1926, 

 7 (Culebra Keys, eastern Quintana Boo, Yucatan; bird heard only, not seen 

 or collected). 



Rallus longirostris pallidus Petebs, Check-list Birds of World, U, 1934, 158 part 

 (Yucatan). — Obbeholsee, Proc. U. S. Nat., Mus., Ixxxiv, 1937, 335 (crit. ; 

 northern Yucatan and eastern Quintana Boo, Mexico). 



RALLUS LONGIBOSTBIS BELIZENSIS Oberholger 



HONDUEANIAN CLAPPEB BAH. 



Adult female (unique, type) . — Similar to Rallus longirostris satu- 

 ratus, but the edges of the feathers of the upper parts of the body 

 pale olive-gray, not brownish olive; and the breast clearer, light 

 pinkish cinnamon. Top of head and hind neck sepia, the latter with 

 narrow, dull, buff feather margins producing a somewhat streaked 

 effect; scapulars and interscapulars with dark clove-brown centers 

 edged with pale olive-gray : lower back, rump, and upper tail coverts 

 sepia to clove-brown, edged with dull olive-gray; rectrices grayish 

 bister with clove-brown centers; remiges sepia, the outer margins 

 lighter above ; upper wing coverts light bister, becoming grayish on 

 the margins on the inner greater and median ones; sides of head 

 olive-gray with a white supraloral stripe and subocular spot ; sides of 



