OF THE SCAPULA IN THE BATRACHIA. 205 



distal end broader than proximal. Shaft long, wedge-shaped ; 

 pars acrotnialis with straight oblique upper border, upper half of 

 proximal end free ; pars glenoidaUs much depressed, slightly- 

 undermining />«rs acromicdis; dividing cleft short, pierced hori- 

 zontally, only visible when viewed obliquely. 



Example. 



Length of prjecoracoid 10 units. 



,, scapula (upper or lower edge) ... 12-2 „ 



,, ,, shaft 9-4 ,, 



Breadth of ,, (distal end) 6"1 ,, 



„ „ (middle) 2-5 „ 



,, ,, (proximal end) 5 ,, 



Length of supra-scapula 11 '6 ,, 



Megalophrys Kuhl. 



M. pelodytoides Blgr. — Scapula well developed in all its parts, 

 as long as the prtecoracoid . Shaft wedge-shaped, as long as broad 

 at distal end ; /"^"'■s ao-omialis with an oblique straight crest 

 along its upper border, rising to a sharp point proximally ; lower 

 lidge of outer surface with a prominent ridge running round the 

 glenoid cavity ; upper half of proximal end free ; jt?ars glenoidaUs 

 much depressed ; dividing cleft short and broad, pierced 

 obliquely, forming a foramen, which is longer when viewed from 

 within than when viewed from without. 



Text-figure 8. 



Pectoral girdle of Megalophrys parva. X 2. 

 (a) from within ; (b) from without. 



Example. 



Length of prascoracoid 10 units. 



„ scapula 10 ,, 



,, „ shaft 62 „ 



Breadth of ,, (distal end) 6*2 ,, 



Length of supra-scapula 11-3 ,, 



M. major Blgr. — Scapvila similar in form to that of M. pelody- 

 toides with the exception of the pars acromialis, the crest of 

 which has a paracentric upper edge ; upper half of proximal end 

 free. 



M. jjarva Blgr. (= Xenophrys mcnticola Gthr.). — Scapula as 



15* 



