402 Annals of the Carnegie Museum. 



Plate XXIII. 



Fig. 34. Left lateral view of the sternum of " Puffintis obscurus," with 

 shoulder-girdle articulated in situ; nat. size; adult. (See fig. 33, PI. VII.) 

 From the collection of C. J. Maynard. 



Fig. 35. Right lateral view of the sternum of the bird's skeleton, labeled 

 " Puffinus obscurus" in the collection of the U. S. Nat. Museum (No. 17724) ; 

 adult; nat. size. See fig. 28 of Plate VII. (The hole in the keel was made 

 in that a label might be attached to the bone — a procedure not to be 

 recommended.) 



Fig. 36. Direct left lateral view of a sternum of Puffinus mcgalli in the 

 McGall collection (Subfossil, Bermuda cave). Nat. size; adult. (See fig- 

 29, PI. VII, and the description in the text.) 



Fig. 37. Left lateral view of the sternum of an adult specimen of Daption 

 capense (No. 18210, Coll. U. S. Nat. Mus.). Nat. size. (See fig. 30 of Plate 

 VII.) 



Fig. 38. Ventral view of the sternum of a specimen of Puffinus major; 

 adult; nat. size. No. 17799, Coll. U. S. Nat. Mus. La Havre Bank, U. S. 

 F. C. Schr. " Grampus." Compare with the sternum next to it on this plate 

 (fig. 39), which also belonged to a specimen of Puffinus major. 



Fig. 39. Direct ventral view of the sternum of a specimen of Puffinus 

 major; adult; nat. size. No. 18076, Coll. U. S. Nat. Museum (Off Cape 

 Race, N. F. " Grampus.") Compare with fig. 38 of this plate. 



