PELVIC ARCH 



113 



Fig. 91. — Pelvis op Yakious Amphibia. A, Xenopus [Dactyhthra), from below ; 

 B, the same from the front ; C, Rana e^cuJtnta, from the right side ; 1) and 

 E, Sa/aiiiandra ntra ; F and G, Salanmndra mnrii/oia ; H, Branrhio.taiirn.s ; 

 I, fJi-iivsaiinis. D-I, from the ventral side. (Figs. H and I after Creduer. ) 



/, ilium ; Is, ischium ; P, pubis (P^ in Rana, pubic end of ilium) ; IP, fused ischio- 

 pubic ossification ; PP, prepubis ; Cep, epipubic cartilage ; Fo^, obturator 

 foramen ; /' (in Xenopus), the proximal end of the ilium, which is separated 

 from its fellow and from the pubis by a + -shapedzone of cartilage, t, * ; Ac, 

 acetabulum. 



I 



