308 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
JAMAICA. 
Exposed 
No. Sex Wing Tail Tarsus Culmen 
37732 fot 159 111 31.5 16.5 
Siioo ch 161 112 31 17 
37734 ot 157 109 29 16 
54089 rofl 154 109 32 16 
3695 of 153 108 30 16.5 
3696 of 158 108 33 17 
37735 2 153 107 29 16 
37736 e) 151 105 29.5 16.5 
37737 Q 153 100 29 16 
41841 °) 159 106 32 16.5 
54088 ce) 151 99 28.5 16 
71554 ie) 151 96 28.5 16 
PSITTACIDAE. 
{+ AMAZONA LEUCOCEPHALA CAYMANENSIS (Cory). 
Ten specimens, both sexes, all adult, Grand Cayman, May and 
June. 
This well-marked form is peculiar to Grand Cayman. I agree with 
Todd (Annals Carnegie mus., 1911, 7, p. 418) that its relationship to 
true leucocephala of Cuba, which is close, is best expressed by the use 
of trinomials. 
Brown noted that the skin of the orbital region, varied from white 
to flesh-color. He took a set of four eggs together with the female 
parent on May 12. 
AMAZONA LEUCOCEPHALA HESTERNA, subsp. nov. 
Ten specimens, both sexes, all adult, Little Cayman and Cayman 
Brac, June and July. 
Type, adult &, M. C. Z. 68313, Cayman Brac, July 15, 1911, W. W. 
Brown, Jr. 
Characters. Similar to true A. leucocephala (Linné) of Cuba, but 
smaller. Paler green, lime-green to mignonette-green (in the Cuban 
bird about Kronberg’s green); under tail coverts and under surface 
of tail (beyond the red base) paler and more yellowish; red belly 
patch always large, more sharply contrasted and brighter red without 
