TINAMUS. 449 
notatis, uropygii plumis et supracaudalibus ochraceo fimbriatis; tectricibus alarum et secundariis extus 
clarius olivaceo-brunneis, potius aureo-olivaceis, et eodem modo nigro fasciatim maculatis ; tectricibus 
primariorum primariisque schistaceo-brunneis ;_ rectricibus brunneis; pileo sordide schistaceo-nigro, 
frontis basi et loris cinerascentioribus; facie laterali, pilei lateribus supra-auricularibus et colli lateribus 
fuscis, plumis arenario-fulvo marginatis, quasi squamatis ; regione parotica schistacea; gutture sordide 
albo, parte ima vix nigro fasciata; collo undique cineraceo-brunneo concolore, postice vix lilaceo lavato ; 
preepectore et corpore reliquo subtus cineraceo; abdomine albicante, indistincte fusco transfasciato ; 
hypochondriis imis et tibiis ochraceo et fusco distincte transfasciatis ; subcaudalibus saturate brunneis, 
ochracescenti-rufo transfasciatis ; tibiis schistaceis ; subalaribus saturate brunneis, concoloribus, axillaribus 
brunneis apicem versus cineraceis; remigibus infra dimidiatis, extus brunneis, intus clare cinereis ; 
maxilla nigricanti-olivacea, mandibula albicante; pedibus saturate olivaceis. Long. tota circa 14°5, 
alee 9°5, caude: 3-0, culm, 1-55, tarsi 2-6. (Deser. exempl. typ. ex Choctum. Mus. nostr.) 
2 mari similis, sed paullo rufescentior, hypochondriis imis et subcaudalibus ochracescenti-fulvis lateraliter 
brunneo fasciatim indentatis. Long. tota circa 12°5, ale 8:8. (Descr. feminz adulte ex Rio de la 
Pasion. Mus. nostr.) 
Hab. Mexico (Mus. Brit.’), Potrero near Cordova, Etriquehuite, Omealca, near Orizaba 
(Sumichrast *), Orizaba (Sallé?), Playa Vicente, Vera Cruz®; British Honpuras 
(Blancaneauxr’*), Belize (Leyland12); Guaremata 8, Choctum, Rio de la Pasion, 
Yzabal (0. S. & F. D. G.4"), Sierra de las Minas (Richardson); Honpuras, Omoa 
(Leyland 12); Nicaragua, Rio Coco, San Emilio (Richardson). 
T. robustus is one of the largest of the Central-American Tinamous, and was first 
recorded from Omoa and Belize by Mr. F. Moore under the name of Tinamus major, 
Gm.; but it was ultimately found to be distinct from that species, which is an 
inhabitant of Paraguay and Southern Brazil. It was described by Dr. Sclater in 1860, 
the type being the specimen procured by us on the Rio de la Pasion, in Guatemala. 
Since that time many examples have been added to our collection, but the series is 
insufficient for us to follow the sequence of plumage through which this Tinamou 
passes, and hence it is impossible to say whether the dark- and the light-coloured birds 
belong to separate geographical races, or whether the variations are to be attributed to 
age alone. . 
In some specimens the black bars on the upper surface are faintly, and in others 
strongly, indicated ; and the sprinkling of ochraceous spots over the upper portion of 
the body and on the wings is the only certain evidence of immaturity that we observe 
in this and other Tinamous. In all other respects the young birds apparently resemble 
adults. The single example received by us from British Honduras is paler than the 
Guatemalan birds. Those obtained by Mr. Richardson in Nicaragua belong undoubtedly 
to T. robustus, and not to 7. Juscipennis, as would have been expected. In Guatemala 
we met with the species near Yzabal and obtained two eggs. 
Leyland *? states that this Tinamou was common at Omoa, and occurred more rarely 
at Belize. The eggs varied from eight to ten in number, and were laid in a slight 
depression scratched in the angles formed by the projecting buttress-like roots of the 
mahogany-trees. The birds were very shy, and when approached tried to conceal 
BIOL. CENTR.-AMER., Aves, Vol. III., April 1904. 57 
