BANGS AND PENARD: SURINAM BIRDS. 81 



247. TURDUS ALBIVENTER ALBIVENTER (Spix). 



Four specimens, both sexes, adult and immature, Vicinity of 

 Paramaribo, March, April, and May. 



Troglodytidae. 

 248. Thryophilus albipectus albipectus (Cabanis). 



Seven specimens, both sexes, adult and immature, Vicinity of- 

 Paramaribo, February, March, April, May, and December. 



One immature bird, (1,340 Penard Coll.), is much paler above than 

 the adults, and has more white below than the others, answering per- 

 fectly to the description of T. a. hypohucus Berlepsch & Hartert from 

 the middle course of the Orinoco (Nov. zool., 1902, 9, p. 6). 



249. Thryothorus coraya coraya (Gmelin). 



Eight specimens, both sexes, adult and immature. Vicinity of 

 Paramaribo, Lelydorp, Javaweg, and Rijsdijkweg, February, March, 

 April, and May. 



250. Troglodytes musculus paramaribensis, subsp. nov. 



Type.— M. C. Z. 80,923, (1,336 Penard Coll.). Adult c^. Vicin- 

 ity of Paramaribo, Surinam, 20 May, 1912. E. Graanoogst. 



Three specimens, both sexes, Vicinity of Paramaribo, March and 

 May. 



Characters. — Similar to T. m. rnvsculus Naum. and T. m. clarus 

 Berl. & Hart., differing from the former in being much paler and 

 whiter below, and from the latter in being much darker above ; differ- 

 ing from both in having the back more conspicuously and more heavily 

 barred with dusky. This form is not intermediate between T. m. 

 viusculus and T. m. clarus, because the upper parts are even darker 

 than in T. m. musculus, and the lower parts are paler than in T. m. 

 clarv^. 



Measurements. — Type, adult cf ; wing, 54.5; tail, 40.5; tarsus, 18; 

 exposed culmen, 13. 



