80 bulletin: museum of compakative zoology. 



referable to the typical form. He thinks that they may have been 

 introduced into the French islands from Guiana, since a recognizably 

 distinct form {M. g. tohagensis) is to be found on the intermediate 

 island of Tobago. He states also that the Guiana specimen examined 

 by him had a much smaller bill than any, that it was less in some other 

 measurements, and that the middle and greater wing-coverts were 

 more distinctly tipped with white. 



On examining the specimens before us we cannot find that the 

 smaller bill or smaller size of the Guiana bird holds; nor does there 

 seem to be any constant difference in the white tips of the wing-coverts. 

 We believe that the West Indian form is identical with that of Guiana, 

 and that it was probably introduced from there as Ridgway suggests. 



244. DONACOBIUS ATRICAPILLUS ATRICAPILLUS (Linnc). 



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

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



Immature birds have a more or less distinct supra-auricular stripe 

 similar to that of the immature of D. a. albovittatu^ d'Orb. of Bolivia, 

 but not nearly so broad or conspicuous. In the adult bird this stripe 

 is entirely missing. 



TURDIDAE. 



245. TuRDUS gymnophthalmus gymnophthalmus (Cabanis). 



Eight specimens, both sexes. Vicinity of Paramaribo, February, 

 March, April, and August. 



246. TuRDUs fumigatus fumigatus (Lichtenstein). 



Three males, Vicinity of Paramaribo, February, and May. 



Specimens from Trinidad with which we have compared our Surinam 

 birds, are much paler and brighter, the upper parts are more ochra- 

 ceous-tawny, less cinnamon-brown; the under parts are almost clay- 

 color, not tawny-olive or even darker. 



Cherrie (Sci. bull. Mus. Brooklyn Inst., 1909, 1, p. 387) separated 

 the Trinidad form as Planesticus fumigatus aquilonalis. We think 

 this form is perfectly good, although it is not included by Brabourne 

 and Chubb in their list of South American birds. 



