568 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 42. 



tion ; but it is distinguishable from that bird by its darker, less f ulves- 

 cent neck; usually slightly darker posterior lower parts; somewhat 

 larger average size (excepting length of culmen) ; and relatively 

 stouter bill. It differs from Butorides virescens cJiristophorensis, to 

 which also it bears close resemblance, in smaller size of the male 

 (excepting depth of bill), and the less brightly fulvesccnt (more pur- 

 plish) neck and sides of the head. From Butorides virescens domini- 

 canus its smaller size (except of culmen) , and its more f ulvescent (less 

 purplish) neck and sides of head are sufficiently diagnostic marks. 

 Compared with Butorides virescens maculatus, it is much smaller 

 throughout; the neck and sides of head are more f ulvescent, less 

 purplish, and the posterior lower parts lighter. From Butorides 

 virescens cubanus the much paler posterior under surface, and the 

 much lighter, more fulvetcent neck and sides of head distinguish it 

 at a glance. The juvenal plumage of Butorides virescens harhadensis 

 apparently averages darker, more rufescent below anteriorly than the 

 young of Butorides virescens hahamensis. 



The female of this race appears to be somewhat larger than the 

 male, at least on the average. Individual variation in depth of colors 

 is considerable, as in Butorides virescens hahamensis. The subspecies 

 seems to be confined to the island of Barbados, where it is found 

 throughout the year. 



Of Butorides virescens harhadensis there havo been 10 examples 

 seen, from the following localities, breeding records marked with an 

 asterisk : 



Barhados Island. — Joe's River; Beachmont; Bathsheba;* St. An- 

 drews. 



Measurements of specimens of Butorides virescens harhadensis. 



1 Used in measurement averages on p. 567. ^ Type. 3 Not quite adult. 



BUTORIDES VIRESCENS GRENADENSIS, new subspecies. 



Chars, suhsj). — Similar to Butorides virescens lucianus, but neck 

 and sides of head darker, rather more rufescent (less purplisli). 



