232 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



The measurements of 18 specimens are as follows: 

 ii males, wing, 4.60 to 4.75; tail, 4.45 to 4.55; culmen, 1.12 

 to i . 20. 



7 females, wing, 4 to 4. 10 ; tail, 3.75^3.85; culmen, i to 1.08. 



Family Crerebidse. 

 Coereba I aura; Lowe. 



Coereba lauras Lowe, Bull. Brit. Orn. Club, Vol. XXI, 1908, p. 108. 



1 1 specimens of this interesting black form of Coereba were taken, 

 6 d\ 4 9 , i ?. It is apparently closely allied to C. wellsi, but differs, 

 according to Mr. Lowe, "chiefly on account of the fact that the bright 

 crimson and tumid rectus which is so conspicuous an object in the 

 St. Vincent and Grenada birds is in this form entirely absent. The 

 bill is also less curved." (Ibis, 1909, p. 320.) 



In the specimens before me there is no indication of a soft col- 

 ored rectus at base of the bill, while it is clearly indicated in dried 

 skins of C. lowii from Los Roques. 



Family Miiiotiltidae. 

 Dendroica ruficapilla rufopileata Ridgw. 



7 specimens, 5 <5\ 2 9 . These birds have the crown patch fully 

 as dark as in D. capitalis from Barbados, but the under parts are 

 streaked as in rufopileata. 



See remarks under Orchilla, page 218. 



Family Mimidse. 



Mimus gilvus rostratus Ridgw. 



8 specimens, 6 cT, 2 9 , which in size of bill and coloration seem to 

 be intermediate between gilvus and rostratus. 



MARGARITA ISLAND. 



The Island of Margarita is too well known to warrant more than 

 a brief description in a paper of this character. Lying some seven- 

 teen miles from the mainland, it consists of two mountains connected 

 by a narrow stretch of arid low land, a part of which contains a large 

 salt lagoon bordered by a heavy growth of mangroves. The eastern 



