179 



t'unn or proper pert of the second rib, may be (need along the inner surface to tbr 

 <Mter aiigir of the coital plate, where the rib IK-COOK* free, and wrttndt two inchn beyood 

 the i \|.jnlrl plate. 



Presented by M. B. Lefebrre, Kq 



902. One of the pleurajwphyses, with the connate costal plate, of the same large 

 Turtle (Ckelone). The slender terminal part of the rib has buuu broken away. 



Pretexted by M. B. Lefebtre, Eq 



908. One of the plcurapophyses, and the connate costal plate, of a smaller Turtle 

 (Ckelone), with the terminal slender part of the rib entire. //////Ar/V///. 



9(>4. The right moiety of the scapular arch of a large Turtle (Ckelone). Hunterian. 



905. The left moiety of the scapular arch of the same Turtle. The numbers indi- 

 cate the scapular, acromial, and coracoid portions of the arch, according to the 

 Table of STNONTMS. Hanlerta*. 



906. The right ulna of a Turtle (Ckelone). Huntenan. 



907. The pelvic arch of a large green Turtle (Ckelone mydati). 



Owing to the non-extension of ossification in the median line from the pubis to the ischium, 

 the two foramina ovalia are blended together into one large heart-shaped vacuity. In the 

 cartilage which fills the anterior part of the syraphyiis of the pubis there are several irregular 

 specks of ossification. There is also a small independent ossification in the symphysis of the 



Pretexted by Mr. C*/. 



MB. The pelvis of the green Turtle (Ckelone mydtu). In thu and the preceding spe- 

 cimen the numbers indicate the constituent parts according to the Table of 

 STNONTMS. Presented by Mr. Cuff. 



909. The pelvis of a small green Turtle (Ckelone mydtu). Presented by Mr. ('*/. 



910. The skull of a Turtle (Ckelone), with the lower jaw. 



It is somewhat narrower in proportion to its length, and tapers more gradually forwards 

 than in the Ckelone my Jot ; horn which it differs more decidedly in the complete insulation 



2 A *> 

 A & 



