TURDUS. 15 
representative of the three races within our limits. We therefore think it best to use 
this name for the common Mexican bird. 
In North America 7. auduboni is found from Fort Bridger southwards, Mr. Ridgway 
having met with it in the Wahsatch Mountains, and Mr. Allen having observed it 
breeding in the mountains of Colorado from about 8000 feet to the timber-line. In 
Mexico it is a common species in the tablelands, judging from the number of specimens 
sent home in collections. Prof. Sumichrast mentions it as an inhabitant of the alpine 
region, and as common in the pine-woods of the district of Orizaba. He obtained it at 
all seasons at Moyoapam, a locality about 8500 feet above the sea-level 5. 
Its presence in Guatemala is known from a single specimen obtained in December 
1873 in the pine-forests of the Volcan de Fuego, at an elevation of about 11,000 feet 
above the sea. Whether the species is resident in this tract of forest or not cannot at 
present be stated; but it is not at all improbable that it is to be found there, as near 
Orizaba, at all seasons. It is also almost sure to be met with in the upland ridges 
of the Guatemala Altos which stretch north-westwards to the Mexican frontier. Our 
Guatemala bird exactly resembles Mexican examples, being fully equal to them in size, 
and consequently considerably larger than the Vera-Paz specimen of the true 7. pallasi. 
B. PLANESTICUS. 
Gula nigro striata aut punctata, pectore et hypochondrits immaculatis. 
Sexus similes. 
8. Turdus tristis. 
Merula tristis, Sw. Phil. Mag. new ser. i. p. 369”. 
Turdus tristis, Scl. & Salv. P. Z.S. 1870, p. 888°; Salv. P. Z. S. 1870, p. 180°; Salv. Ibis, 1872, 
p. 314%. 
Turdus assimilis, Cab. Mus. Hein. i. p. 4’; Scl. P. Z. S. 1857, p. 202°, 1859, pp. 3627, 370°, 
1864, p. 172°; Baird, Rev. Am. B. p. 24"; Sumichrast, Mem. Bost. Soc. N. H. i. 
p. 5437. 
Turdus leucauchen, Scl. P. Z. 8.1858, p. 447; Scl. & Salv. Ibis, 1859, p. 6; Salv. P. Z. S. 1867, 
p. 182; Lawr. Ann. Lye. N. Y. ix. p. 91”. 
Supra olivascenti-brunneus, cauda (in stirpe typica) dorso concolori; subtus dilutior, macula pectorali et ventre 
imo albis; gula nigro distincte maculata ; rostro flayido (nonnunquam corylino), pedibus pallide corylinis. 
Long. tota 9:0, ale 4:9, caude 3°8, rostri a rictu 1:0, tarsi 1:3. (Descr. exempl. ex Jalapa, Mexico. 
Mus. nostr.) 
Hab. Mexico, Temascaltepec (Bullock), Jalapa? ( Sallé°, de Oca"), Vigia (Sallé*), Juquila 
and Teotalcingo (Boucard®), Orizaba (Botteri), Forests of Muero, Potrero, Cordova, 
and Orizaba (Swmichrast 14), valley of Mexico (White °, le Strange), Puente nacional 
(Pease) ; GUATEMALA 1°, Coban, Choctum, Cahabon to San Luis, Duefias (0. 8. & 
F. D. G.); Honpuras, San Pedro (G. M. Whitely?); Nicaracua, Chontales (Belt )4: 
Costa Rica, Dota Mountains (Carmiol °), Navarro (J. Cooper ®); Panama, Volcan 
