THE FROG 



29 



of the auditory region. The posterior cornua are bony rods 

 which diverge from one another and enclose between them the 

 larynx. 



The frog has no ribs, unless the little cartilaginous 



Ta- 



Fig. 2. 



A, The shoulder girdle of the Frog ; the scapula and suprascapula are turned 

 outwards. ep, episternum ; os, omosternum ; ep, c, epicoracoids ; tries, 

 mesosternum ; _r/, xiphisternum ; s, sc, suprascapula ; sc, scapula ; gl, 

 glenoid cavity ; cor, coracoid ; cl, clavicle. B, The pelvic girdle of the 

 Frog, viewed from the side. //, ilium; Isch, Ischium ; Pu, cartilaginous 



pubis ; Ac, acetabulum. C, The pelvic girdle of the Frog, 

 below. (All the figures after Ecker.) 



iewed from 



epiphyses at the ends of the transverse processes of the 

 vertebrae are to be considered as rudiments of such. But 



