528 Observations on the Genus Coereha. 



C(EREBA LOWII. 



Careba lowii Cory, Field Mus. Nat. Hist. Publ. no. 137, 

 Ornitli. vol. i. no. 5, p. 217 (1910). 



Hah. Los Roques Islands, Venezuela. 



This is another melanistic variation of the normally 

 coloured type. I have never seen a specimen. Mr. Cory 

 (/. c.) says : — " Is similar to C. ivel/si, but differs in having 

 the back distinctly more grey than the crown, not uniform 

 as in C. wellsi, and the underparts more decidedly olive- 

 green. In the four specimens taken, the dried skins shew 

 every indication of a tumid rictus, which does not shew at 

 all in specimens of C. laur(E from Los Testigos." 



jVo notes were taken by the collector as to the colour of 

 the rictus in life. 



CCEREBA FERRYl. 



Ccrreba ferryi Cory, Field Mus. Nat. Hist. Publ. no. 137, 

 Ornith. vol. i. no. 5, p. 221 (1910). 



Hab. Tortuga Island (east of Margarita Island), Vene- 

 7Aiela. 



Measnrements of type. ^Ving 57'2 mm. ; culmen 9"6 mm. 



Mr. John Ferry procured eleven specimens of this new 

 foi'm which I have not had the opportunity of examining. 

 Mr. Cory says : — " Similar in size and coloration to speci- 

 mens of C. luteula from Margarita and coast of Venezuela, 

 but differs in having the entire forehead and front of crown 

 white, and the secondaries and tertials narrowly tipped with 

 white. In the type, the frontal white patch extends upon 

 the crown at least "30 in. from base of upper mandible, 

 and in none of the series is the white forehead less than 

 •15 in. in width." According to Mr. Ferry the species 

 is common on the island. Many nests were found, but all 

 empty. This was in February. 



In concluding I have to express my grateful thanks to 

 IMr. Charles Chubb for much kind help given to me in the 

 preparation of tliis paper. 



