312 bulletin: museum of comparative zoology. 



ones from Little Cayman and Cayman Brae taken in June and July. 

 Brown took fully fledged young from July 10 to July 28. The wing 

 in the adults in this series ranges, in Grand Cayman skins, from 103- 

 107; in skins from Cayman Brae, 97-103; in the only adult from 

 Little Cayman (a cf ) it is 108. The Cayman Brae specimens have 

 the tips of the primaries a little more worn down than the Grand 

 CajTTian ones. 



Myiarchus sagrae sagrae (Gundlach). 



Myiarchus denigratus Cory, Auk, Oct. 1886, 3, p. 500, 502, Grand 

 Cayman. 



Ten specimens, both sexes, all adult. Grand Cayman, April and May. 

 Apparently this bird is found in Grand Cayman only of the Caymans. 

 The specimens in the present series are indistinguishable in any way 

 from Cuban skins. 



* Elaenia martinica caymanensis Berlepsch. 



Elaenia martinica complexa Berlepsch, Proc. 4th International 

 ornith. congress, 1905, p. 395, Cayman Brae. 



Twenty-six specimens, both sexes, all adult, Grand Cayman, 

 Little Cayman, and Cayman Brae, April, May, June, and July. 



Specimens in exactly similar plumage from the three islands of the 

 Cayman group are absolutely alike, and no subdivision can be made. 

 I am sure Berlepsch was deceived by the artificial discoloration of 

 Maynard's Cayman Brae skins, upon examples of which he based 

 his E. vi. complexa. Two such skins are now before me and I do not 

 wonder at such a mistake being made. 



The Cayman Elaenia fades and bleaches out late in summer, 

 losing all its colors. Two skins collected in Grand Cayman in 

 August, 188(3, by W. B. Richardson, have lost all traces of the colors 

 and markings of the form when in fresh plumage. The April speci- 

 mens in the present series from Grand Cayman are in beautiful fresh 

 unfaded plumage. Some of the late July skins from Cayman Brae 

 have nearly completed the postnuptial moult and are indistinguish- 

 able from these. Others taken at the same time had not commenced 

 to moult, and are nearly as faded out as the August examples just 

 referred to. 



The Cayman bird appears an excellent form, but I cannot agree with 



/^ 



