178 



889. The left femur of the same Chelone. 



890. The right tibia of the same Chelone. 



891. The left tibia of the same Chekne. 



. :>i>i i : -.;!' fan -wiT .J'\H\ 



892. The right fibula of the same Chelone. 



':> "i;> .; i .ulT' .l'\<-'- 



893. The tarsal series of bones of the same Chelone. 



894. The metatarsal and some of the phalangeal bones of the same Chelone. 



- 



895. The skull of a green Turtle (Chelone my das) : the weight of the entire animal 



was 603 pounds. Presented by Mr. Guff. 



896. The skull of a green Turtle (Chelone mydas). Hunterian. 



>V> xu-uw *<i fr> wwii*iii.,-i Mu W i(T .<: ,".' 



897. The skull of a green Turtle (Chelone mydas). Hunterian. 



898. The skull of a small green Turtle (Chelone mydas), with the lower jaw and its 



horny sheath. Presented by Henry Cline, Esq. 



899. The skull of a green Turtle (Chelone mydas), wanting the lower jaw. 



Hunterian. 



900. The skull of a green Turtle (Chelone mydas), wanting the lower jaw. 



Hunterian. 



901. The second dorsal pleurapophysis and connate costal plate of the right side of 



the carapace of a large Turtle (Chelone). 



The head of the rib is supported upon a short, thick, but compressed free portion, resem- 

 bling a neck ; the projecting part above this, which seems to answer to the tubercle, is the 

 base of the connate ' costal plate,' which was articulated by a sutural border with the first, 

 second and third neural plates of the same carapace. The rest of the costal plate presents a 

 subtriangular form, and shows on its inner surface, near the neck, the rough depression to 

 which the rib of the first dorsal vertebra articulated ; a smooth tract, indicating the ordinary 



