20 PASSERES 
— Bill large and strong. Plumage not bright olive green, but more or less 
brownish olive above and brownish or grayish olive below . 
4. Wing 96 to roo mm., tail 76 mm. and more 
— Wing never more than 92 mm., tail not exceeding 72 mm. 
5. Upper parts rufescent olive brown; throat and foreneck strongly tinged 
with vufescent brown, vemainder of lower surface pale greenish olive 
— Upper parts deep olive brown, head vather more vufescent ; under surface 
deep brownish olive, throat scarcely darker. 
— Back dark, dull greenish olive, head somewhat more vufescent ; under sur- 
face dark greenish olive, throat slightly washed with brownish 
— Upper parts rufescent olive brown ; throat and foreneck strongly tinged with 
vufescent brown, abdomen dull greyish olive 
— Back dull brownish olwe, top of the head tn marked contrast rufescent 
brown; throat and foreneck strongly tinged with rufescent; remainder 
of lower parts dull greyish olive. 
— Back intermediate in colour between S. t. amazonum and S. t. wallacii. 
Throat and foreneck distinctly, though shightly, shaded with brownish ; 
remainder of lower parts dull greyish olive. 
— Upper parts dull olive, cap scarcely brownish: under surface pale greyish 
olive, throat but faintly shaded with brownish . 
. Scotothorus turdinus turdinus (Wied). 
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- TURDINUS TURDINUS. 
- TURDINUS VER4:-PACIS. 
. TURDINUS FURVUS. 
- TURDINUS ROSENBERGI, 
- TURDINUS STENORHYNCHUS. 
- TURDINUS AMAZONUM. 
« TURDINUS OLIVACEUS. 
» TURDINUS WALLACII. 
Muscicapa turdina Wied, Beitr. Naturg. Brasil, Vol. 3, Abt. 2, p. 817 (1831) (E. Brazil). 
Muscicapa rufo-olivacea Lafresnaye, Mag. Zool. 1833, Cl. 2, text to pl. 13, p. 3 (no locality). 
Hab. Only known from Bahia, East Brazil. 
nN 
. Scotothorus turdinus wallacii (Sclater & Salvin.) 
Heteropelma wallacit Sclater & Salvin, Proc. Zool. Soc. Lond. 1867, p. 579, 595 (Para). 
Hab. N. E. Brazil : Para. 
3. Scotothorus turdinus olivaceus Ridyway. 
Scotothorus olivaceus Ridgway, Proc. Biol. Soc. Wash. Vol. 19, p. 118 (1906) (Rio Mato, tributary of the Caura, 
Venezuela). 
Hab. East Venezuela : Caura River and its affluents ; British Guiana, Cayenne. 
4. Scotothorus turdinus amazonum (Sclater). 
Heteropelma amazonum Sclater, Proc. Zool. Soc. Lond. 1860, p. 466 (Chamicurros, Eastern Peru). 
Hab. Upper Amazonia from Colombia (Bogota-collect.) and the upper Orinoco (Nericagua, Munduapo) 
south through Eastern Ecuador and the Rio Negro district (Marabitanas, Rio Xié) to Southeast Peru 
(Marcapata) and western Mattogrosso (Villa Maria and Engenho do Gama on the Rio Guaporé). 
N. B. Specimens from Borba, Rio Madeira, are intermediate between this form and n° 2. 
ni 
. Scotothorus turdinus rosenbergi (Hartert). 
Heteropelma rosenbergt Hartert, Novit. Zool. Vol. 5, p. 489 (1898) (Cachavi, N. W. Ecuador). 
Hab. Western Ecuador. 
6. Scotothorus turdinus furvus Ridgway. 
Scotothorus furvus Ridgway. Proc. Biol. Soc. Wash. Vol. 19, p. 118 (1907) (Boquete de Chitra, Veragua). 
Hab. Veragua (Boquete de Chitra, Chitra, Calevevora). 
7. Scotothorus turdinus verz=pacis (Sclater & Salvin). 
Heteropelma verae-pacis Sclater & Salvin, Proc. Zool. Soc, Lond. 1860, p. 500 (Vera Paz, Guatemala). 
Scotothorus veraepacis dumicola O. Bangs, Proc. New Engl Zool. Club, Vol. 3, p. 103 (1903) (Chiriqui). 
Hab. Central America from Guatemala (Vera Paz) south to Chiriqui. 
N. B. I could not find any constant differences belween specimens from various localities. 
