BANGS AND PENARD: SURINAM BIRDS. 31 



7. Nyctanassa violacea cayennensis (Gmelin). 



Type-locality. — Cayenne. 



Three specimens, one adult and two immature, Braamspunt, July. 



The Surinam bird is smaller and darker than the North American 

 N. V. violacea (Linne), type-locality Carolina, and it should be recog- 

 nized as belonging to a distinct race. The adult bird affords the 

 following measurements: — wing, 252; tarsus, 78; exposed culmen, 

 73. 



The West Indian bird should also be recognized as a subspecies. 

 It is about the same size as the North American bird, but much paler 

 in general coloration, with the edges of the feathers of the back espe- 

 cially pale. It should be known as 



7a. Nyctanassa violacea jamaicensis (Gmelin). 

 Type-locality. — Jamaica. 



8. CocHLEARius cocHLEARius (Linne). 



Three specimens, two adult and one immature. Vicinity of Para- 

 maribo, March, and August. 



A single old adult bird from Rio de Janeiro is much larger than the 

 Surinam specimens (wing 293 as against 258, 260, and 270) ; the bill 

 also is much heavier. If these differences are constant, the larger, 

 southern bird should be known as 



8a. CocHLEARius COCHLEARIUS CANCROPHAGA (Linne). 

 Type-locality. — " Brasilia." 



9. BuTORiDES STRIATA (Linn^). 



Nine specimens, Vicinity of Paramaribo, January, February,]April, 

 May, June, July, and December. 



