116 



COMPARATIVE ANATOMY 



A 



FIG. 94. PELVIC ARCH OF VARIOUS CHELONIANS. (From the ventral side.) A, 

 Macrochelys (after G. Baur) ; B, median pelvic cartilage of Chelys fimbriata ; 

 C, the same of Emydura ; D, Sphargis coriacea (after Hoffmann) ; E, Testudo ; 

 F, Chelone. 



Cep, epipubic cartilage ; Hpls, hypoischiatic process ; P, pubis ; PP, prepubis ; 

 Is, ischium ; Fopi, ischio-pubic foramen. 



compared with that of Amphibians consist in : (1) a much more 

 marked differentiation of the pubis, which is more distinctly 

 separated from the ischium by an ischio-pubic foramen ; (2) the 



