OF THE SCAPULA IN THE BATRACHIA. 205 



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

 pars acromialis with straight oblique upper border, upper half of 

 proximal end free ; pars glenoidalis much depressed, slightly 

 undermining pars acromialis ; dividing cleft short, pierced hori- 

 zontally, only visible when viewed obliquely. 



Example. 



Length of prrecoracoid 10 units. 



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



» shaft 9-4 „ 



Breadth of ,, (distal end) 6 - l „ 



ii ii (middle) 2-5 „ 



,, ,, (proximal end) 5 ,, 



Length of supra-scapula 1 1*6 ,, 



Megalophrys Kuhl. 



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

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

 at distal end ; pars acromialis with an oblique straight crest 

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

 ridge of outer surface with a prominent ridge running round the 

 glenoid cavity ; upper half of proximal end free ; pars glenoidalis 

 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 ; (6) from without. 



Example. 



Length of prsecoracoid 10 units. 



„ scapula 10 ,, 



„ shaft 6-2 „ 



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



. Length of supra-scapula 11*3 ,, 



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



15* 



