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 



Fig. 2. 



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

 outwards. ep t episteinum; os, omosternum ; ep, c, epicoracoids ; tries, 

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



flenoid cavity ; cor, coracoid ; cl, clavicle. />', The pelvic girdle of the 

 'r->g, viewed from the side. //, ilium; fsc/i, Ischium ; /'?/, cartilaginous 

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

 below. (All the figures after Ecker.) 



epiphyses at the ends of the transverse processes of the 

 vertebrae are to be considered as rudiments of such. But 



