Shufeldt: Birds from Bermuda. 353 



Mus. Coll., collected by Doctor Kidder (see list above), agrees, in all 

 essential particulars, with the cranium figured by Forbes, as set forth 

 above ; doubtless the former came from a specimen of that species, 

 as did likewise the latter. The mounted skeleton from the Museum 

 of Comparative Zoology, marked /Estrclata Icssoni, is not a skeleton 

 of that species, but evidently belonged to some medium-sized Shear- 

 water (Pitffiiius) of a somewhat larger size than Pnffinus Iherminieri. 

 It came from a bird of about similar proportions to the one marked 

 Pnffinus obscuriis of the collection of the U. S. National Museum 

 (No. 17724). The skulls are of the same size and very much alike; 

 but the National Museum specimen had a somewhat longer humerus 

 and a shorter sternum. The species — whatever it was — is not repre- 

 sented in the Bermuda specimens at hand for description. 



Mstrelata lessoni is a large, rather heavy Petrel of about the same 

 proportions as Fiihnarus glacialis, and its skull agrees in many par- 

 ticulars with that species. (Compare with No. 16781, Coll. U. S. 

 Nat. Mus. = Ftdmanis glacialis.) 



Finally, I have compared all the Bermuda specimens with the mate- 

 rial in the above list, representing the osteology of the Tiibinares in 

 the collection of the U. S. National Museum, including even Proccl- 

 laria cooki (PI. XIX. fig. 17) and Pclccanoidcs nrinatrix (PI. XX, fig. 

 21). Most of this material is likewise figured on the plates; and, as 

 far as it goes, it demonstrates very completely that none of the species 

 are to be found among those from Bermuda, as represented by the 

 bones at hand. 



I now pass to a description of the material itself — the subfossil bird 

 bones from Bermuda. 



This, as pointed out above, is divided into three (3) lots, and may 

 be designated as : 



1. The Mowbray collection. 



2. The McGall collection. 



3. The American Museum of Natural History collection. 



I : In the Mowbray collection the bones are very fragile ; have more 

 of the cave incrustation upon them ; and are, as a rule, not nearly as 

 perfect as those in the other two lots. It contains no skulls, only a 

 parafin cast of one of the " Cahow " skulls found in the other two 

 collections. The piece of the upper mandible with the theca still upon 



