during a Cruise in the Caribbean Sea. 321 



The average lengths of the exposed culmen of male speci- 

 mens shot by me are as follows : — 



Four males from Los Testigos . . 14*5 mm. 

 Five males from St. Vincent . . 14 „ 

 Four males from Grenada ... 13 „ 



The average length of wings = 62 mm., and of the tarsi 

 = 185 mm. Females are rather smaller. 



The measurements given by Mr. Ridgway ('Birds of 

 North and Middle America/ part ii. p. 423) of the only 

 specimen in the Smithsonian Institute of Coereba atrata seem 

 to be much larger than is usually the case. 



HOLOQUISCALUS LUMIXOSUS. 



Quiscalus luntinosus Lawr. Ann. N.Y. Acad. Sci., July 1, 

 1878, p. 162. 



Five males and one female. 



These specimens agree in every respect with those which 

 I obtained in Grenada. It is to be noted that this bird 

 is not found on Margarita Island, where its place is taken by 

 Quiscalus insularis. It is well represented on the island. 



Cariaco Peninsula. 



We left Los Testigos in the early morning of Jan. 3rd, 1 908^ 

 and after a short stay at Cumana for pratique, proceeded up 

 the Gulf of Cariaco and arrived at the Laguna del Obispo at 

 dusk. This extraordinary inlet of the sea is situated about 

 halfway up the southern rock-bound coast of the Peninsula. 

 The entrance to it is very narrow and easily missed. Once 

 inside, the voyager finds himself on an irregular sheet of deep 

 still water of the deepest blue, studded here and there with 

 small islets. Surrounding it on all sides, in the fashion of a 

 Scotch loch, are high hills. They present a series of colours 

 which vary from rich deep red to deep yellow-ochre. In the 

 distance the iron-tinted soil seems in places to be frosted with 

 old silver, an effect produced by the patches of silvery-toned 

 cactus- scrub. Along the shores, stretches of bright golden 

 sand alternate with the deep green of the mangrove-belts. 

 Here and there on the lower slopes patches of acacia-trees 



