some new Procellariidpe. 65 



common the peculiar coloration of the remiges, the outer and 

 one-third of the inner webs of which with the tips are brownish- 

 black, while two-thirds of the internal webs are white, the two 

 colours meeting without any gradation of tint, but presenting a 

 sharp well-detined outline, and thus forming two distinct areas, 

 the white area being internally bordered at its apex by 

 brownish-black. 



But our species differs from JE. gularis, as described by Coues, 

 in its smaller dimensions and slighter make (^. gularis being 

 in size and make similar to yE. mollis), in the cinereous colo- 

 ration of its upper, and the pure white of its lower parts, while 

 ^. gularis would be dark-coloured above and below, having 

 only the under tail-coverts white. Moreover we may observe 

 that jE. gularis appears peculiar to a much more antarctic re- 

 gion, the only known specimen having been caught in S. lat. 

 68°, long. 95° W. 



We have given to this species the name of the much -lamented 

 Professor F. de Filippi, who halfway on the long voyage, un- 

 dertaken with such bright hopes, on board the ' Magenta,^ fell, 

 as a soldier on the field of battle, a victim to his love of Natural 

 Science, at Hong Kong, on the 9th of February, 1867. 



4. jjEstrelata trixitatis, sp. nov. 



" We found this species pretty abundant around Trinidad 

 Island in the South Atlantic, and I procured several specimens 

 on the 23rd of January. Bill and feet deep black, irides 

 brown."— H. H. G. 



jE. ex toto fuliginoso-nigra, subtus vix pallidior, remigibus ni- 



gricantioribus, basi intus pallidioribus ; fronte ac capite 



supra plumis distincte griseo-marginatis ; rostro pedibusque 



nigris ; iridibus brunneis. 



Long. tot. O'a-SSO, alee 0m-290-0m-295, caud. O'^'ISO, rostr. 



a fronte 0"^-028-0'n-031, tars. 0i^-034, dig. med. cum ung. 



0°i-046-0'^050. 



from ^. mollis, although it seems to us that he was perfectly entitled to 

 do so, looking to the pure white coloration of the imder wing-coverts, and 

 of the greater part of the internal webs of the primaries, without any gra- 

 dual transition to the hlackish -brown of the external webs, and part of the 

 internal ones. 



VOL. V. N. S. F 



