PELVIC ARCH 



Wim-s 



t—Is 



Fig. 93. — Pelvic Akch of Various Reptiles. (From tlie ventral side). A, 

 Palceohatteria, after Credner ; A'-C, Pleniosauriis : A\ from a restoration in 

 the College of Surgeons ; B, from Huxlej''s Anatomy of Vertehrated 

 Animals ; C, after D'Arcy Thompson ; D, Lahyrinthodon riitimeyeri ; E, 

 Hatteria. 



P, pubis ; PP, prepubis ; Cep, epipubic cartilage ; Fo^, obturator foramen ; la, 

 ischium ; /, ilium ; f ,t, ischio-pubic foramina ; *, hypoischiatic process, which 

 becomes segmented off from the pelvis in other Reptiles. 



I 2 



