PROCELLAEIIDiE. 253 



CE. arminjoniana is compared to (E. negleda (Schl.) ; but it has in 

 reality little relationship with that bird. To CE. magentce it bears a general 

 resemblance, differing in being smaller in all its dimensions, in the absence 

 of the silky white of the forehead, and the dark anteocular spot ; besides, 

 its lateral mider tail-coverts are greyish-black, and their tips bordered with 

 white. 



I have already stated (anteh, p. 233) my reasons for believing the bird 

 called in Solander's MS. P. sandaliata to be the same as that here described, 

 and that of all the claimants to Gmelin's title Procellaria alba this has perhaps 

 the strongest right to it. I have also shown that P. sandaliata cannot be 

 used as the name of this species, being a MS. title, and therefore inad- 

 missible, and that the uncertainty hanging about the application of the name 

 P. alba renders it inexpedient that it should be made to supersede that given 

 with so full a description by the Italian naturalists. 



(ESTRELATA TRINITATIS. Plate XXXII. 



jEsfrelata trinitatis, Gigl. Sc Salvad. Ibis, 1869, p. 65 ; iid. Atti Soc. Ital. Sc. Nat. xi. p. 454; 

 Gigl. Faun. Vertebr. nell' Oceano^ p. 40. 



CE. ex toto fuliginoso-nigra, subtus vis pallidior, remigibus nigricantioribus, basi intus pallidioribus ; 

 fronte ac capite supra plumis distincte griseo marginatis ; rostro pedibusque nigris ; iridibus 

 brunneis : long. tot. IS'O, alee ir2, caudse 4-55, rostri a fronte I'l, a rictu 1-62, tarsi 1-25, 

 dig. med. cum ung. 1"80. 



Hub. in Insula Trinitatis, Oceano Atlantico meridionali [Giglioli] . 



This species was found pretty abundant around Trinidad Island, in the 

 South Atlantic ; and several specimens were procured on the 23rd January. 

 The bill and feet Avere noted as deep black, and the irides as broAvn. 



The bird on the left hand of the Plate, which is described as perhaps 

 not adult, has the underparts (especially the throat) lighter, the pure white 

 of the basal portion of the feathers showing amidst the fuHginous brown of 



the rest. 



2 M 2 



