Vol. XXIII 

 1906 



Claiik, Black Forms of the Genus Coereba. 395 



never met with one, and the only authentic specimen known to 

 me is one which was shot near Point Saline in the spring of 1904 

 by Mr. Charles Vernet of St. George's, who very kindly presented 

 it to me. He informed me that, although he has collected birds 

 for a number of years at Grenada, he never saw but this one exam- 

 ple. It is identical with a large number of others obtained by 

 myself on the Grenadines. 



On the small islands between Grenada and St. Vincent, this 

 form is very abundant; in fact it is one of the com onest birds. 

 It occurs on Bequia, Battowia, Balliceaux, Mustique, Canouan, 

 Mayreau, Union Island, Prune Island, Frigate Rock, Petit Marti- 

 nique, Tobago Keys, Carriacou (and neighboring islets), and Isle 

 Ronde (with outlying keys). 



Specimens of normal C. wellsi differ from normally colored 

 C. atrata from St. Vincent in being smaller, with a shorter and 

 weaker bill (just as the black forms from the two islands differ), 

 and they are not so dark above. 



Black Form. 

 Black See See. 



Certhiola wellsi Cory, Auk, Vol. VI, p. 219 (1889); [Wells], Birds Grenada, 



Grenada Handb., 1904, p. 147, No. 12. 

 Certhiola atrata Lawr., Proc. U. S. Nat. Mus., Vol. I, pp. 269, 487 (1878); 



Ridgw., Proc. U. S. Nat. Mus., Vol. VIII, pp. 28, 30 (1885); Cory, 



List Birds W. I., p. 9 (1885); Auk, Vol. Ill, p. 53 (1886); Scl., Cat. 



Birds Brit. Mus., Vol. XI, p. 47 (1886); Wells & Lawr., Proc. U. S. 



Nat. Mus. Vol. IX, p. 612 (1886); Cory, Birds W. I., p. 67 (1889). 



Abundant all over the island of Grenada, to which island it is 

 confined. 



