CRYPTURUS. 457 
4, Crypturus boucardi. 
Tinamus boucardi, Scl. P. Z. 8. 1859, p. 891'; Sumichr. La Nat. v. p. 229’. 
Crypturus boucardi, Salv. Ibis, 1870, p. 115°; Scl. & Salv. P. Z. S. 1870, p. 838‘; Boucard, 
P. Z.S. 1878, p. 41°; Zeledon, An. Mus. Costa Rica, p. 128°; Salvad. Cat. Birds Brit. Mus. 
XXvil. p. 544.7; Underwood, Ibis, 1896, p. 449°. 
Nothocercus boucardi, Heine & Reichenow, Nomencl. Mus. Hein. p. 304’. 
Tinamus sallei (nec Bp.), Salv. Ibis, 1861, p. 856". 
Crypturus sp., Richmond, Pr. U. S. Nat. Mus. xvi. p. 526”. 
Supra rufescenti-brunneus, plumis singulis fusco indistincte marginatis; pileo sordide schistaceo; collo postico 
et laterali cum interscapulio toto saturate plumbeis; tectricibus alarum cinerascenti-brunneis, medianis 
indistincte arenario terminatis, majoribus ochraceo apicatis et nigro subterminaliter notatis; remigibus 
fuscescenti-cinerascenti-brunneis ; secundariis intimis dorso concoloribus, exterioribus sordide arenario 
marmoratis: subtus plumbescenti-cinereus, mento albicante; abdomine medio isabellino; hypochondriis 
imis et subcaudalibus ochraceo nigroque transfasciatis ; subalaribus plumbeis ; alis intus cineraceis. Long. 
tota circa 10:0, ale 6°6, caude 1-7, culm. 1°15, tarsi 2:0. (Descr. exempl. typ. maris adulti ex Teotalcingo. 
Mus. nostr.) 
©. Supra marmoratus, dorso chocolatino, interscapulio concolore, sed dorso postico, uropygio et supracaudalibus 
nigro et ochracescenti-fulvo transfasciatis, his magis conspicue notatis; tectricibus alarum et secundariis 
extus ochracescenti-fulvo crebre fasciatis. Long. tota circa 10°5, ale 6:9. (Descr. femine adulte ex Rio 
Coco. Maus. nostr.) 
Hab. S. Mexico, Vera Cruz, Playa Vicente, Teotalcingo (Boucard 17), Uvera (Sumi- 
chrast *), Chimalapa, Tehuantepec (Richardson’); British Honpuras (Blanc- 
aneaux™); GUATEMALA®, Chisec !°, Choctum’ (0. S.); Honpuras, San Pedro 
(Whitely*+); Nicaracua, Rio Escondido (fichmond '!), Rio Coco (Richardson) ; 
Costa Rica®, San Carlos (Boucard®), Pacuare (Zeledon ®), Miravalles (Under- 
wood ®), 
The uniformly grey throat and breast, combined with the leaden-black colour of the 
head and neck, serve to distinguish this Tinamou. ‘The upper part of the throat is 
light grey in the typical bird from Mexico, but is decidedly whiter in those from 
Nicaragua. 
A specimen from Miravalles, Costa Rica, is quite as dark as the Mexican examples, 
but has a slightly whiter throat. It is therefore somewhat intermediate, resembling 
in this respect one of our Chisec skins. The two palest birds are from British 
Honduras, but, judging from our series, every gradation of tint is illustrated, and we 
can scarcely believe in the existence of any distinct races. M. Boucard found this 
Tinamou abundant near San Carlos, in Costa Rica, in February. ‘The flesh is described 
as white and of excellent flavour. 
5. Crypturus mexicanus. (Tab. LXXIX. figg. 1, 3; 2, 2.) 
Crypturus mexicanus, Salvad. Cat. Birds Brit. Mus, xxvii. p. 545°; Richmond, Pr. U.S. Nat. Mus. 
xviil. p. 6277; Nelson, Auk, xvii. p. 254°. 
C. boucardi similis, sed subtus pallidior, dorso postico, scapularibus, supracaudalibus et secundariis intimis 
regulariter nigro transfasciatis ; gula alba; gutture imo schistaceo ; corpore reliquo subtus ochracescenti- 
BIOL. CENTR.-AMER., Aves, Vol. III., Apri/ 1904. 58 
