( 50) 

 IC)."). Florida caeriilea (Linn.V 



^ )■(/(■« '(/en; /<a Linnaeus, Sijsl. XhI. x. 1 (17o8) p. 143 ["in America scptontriouali." — We accept 

 as the typical habitat Carulina ex Catesby], 



One ? ad. in the shity bliiisli, and c? ? in the white plnmage, all from 

 ('aroui Swamp, Blarch. We have also a good series of both phases from Tobago. 



106. Hydranassa tricolor rufimentum n. snbsp. 



Agrees with 77. tricolor tricolor (P. L. S. Miill.) in size, but differs at a glance 

 by its much darker, blackish instead of slate-grey colour of the upper parts and 

 neck, and by having the chin like the whole middle line of the throat chestnut, 

 while the chin is always white in 77. t. tricolor and II. t. rujicollis. The chestnut 

 colour on the throat is also decidedly darker than in the two last-named subspecies. 



Type in Tring Museum : " c? " i)erad. Caroni Swamp, Trinidad, March 22, 

 1UU2, E. Andre coll.— Wing. 214 ; tail, 73 ; bill, 85 mm. 



Unfortunately Mr. Andre sent only one male of this interesting new form. 



It differs, however, so strikingly from ten examples from Cayenne and Surinam 

 (true 77. t. tricolor), and from a good many specimens of 77. t. rujicollis that 1 feel 

 quite coutident as to its distinctness, and have no hesitation in describing it as 

 a different race. In both of its allies, the chin and more or less also the anterior 

 portion of the throat are white. The upper ])arts and the foreneck are always 

 bluish or slaty grey, while they are deep blackish in the Trinidad form, 

 and the elongated feathers on tlie rump are decidedly darker, more umber-brown, 

 in the latter. 



We have thus to distiuguisli the following subsjjecies : 



(a) lli/dranassa tricolor tricolor (P. L. S. Miill.). 



Ardea tricolor P. L. S. Miiller, yatarsi/st. Sup pi. p. Ill (1 776 : ex Daubcnton, 

 PL eiil. 350.— Cayenne). 



Arrlea leucogaster Boddaert, Tabl. PI. cnl. [i. 21 (1783 : based on the same). 



H;ib. ('(njeniic : Roche Marie, etc. (Clierrie coll.) ; Surinam : near Paramaribo 

 (Pcnard coll, — Mus. Tring); J'.Zs. Bnizil: Cajutuba, near Para (Natterer coll.). 



2 (? ad., Surinam. . Wing, 2i(t ; tail, 65 ; bill, 82, 85 mm. 



8 from Cayenne . . „ 204 — 218; ,, OS — 78; „ 78 — 80 „ 



(Ij) Ilijdranassa tricolor rujimcnlum llellm. 



Hab. Trinidad. 



(c) 77. tricolor ruficollis (Gosse). 



Ec/rctta rujicollis Gosse, JJirds Jamaica, j). 338, tab. 03 (1847 — Jamaica). 



Hab. ^V'armer portions of Eastern JS'ortk America ; south tiirough Ccidrul 

 America to Panama and JV'. TP. Ecuador ; and the West Indies south U) Aruba, off 

 the north coast of Venezuela. 



2 ad. (c? ? ) from Georgia . 

 I c? ad., Jamaica 



1 ? ad., l.sje of Pine, Cuba 



cj ad., Mexico . . . . 



2 ((? ? ), Andros IsL, ]5ahamas . 

 1 S jr., Panama (Harris coll.) . 

 1 ad., Vaqueria, N.W. Ecuador. 

 1 ? ad., Aruba (Hartert coll.) . 



^&j 



