208 MISS JOAK B. PROCTER ON THE VARIATION 



Breadth of scapula (distal end) 10-2 units. 



„ (middle) 2-6 „ 



,, pars acromialis 3*5 ,, 



,, pars glenoidalis 1*7 ,, 



,, central foramen 2-2 „ 



Length of „ ,, 4'4 „ 



,, pars acromialis 3*5 ,, 



,, pars glenoidalis 1'^ >> 



,, supra-scapula ,. 14*8 „ 



Text-figure 9. 



Pectoral girdle oi Fhyllomednsa hicolor, X2; from without. 



P. burmmsteri Blgr. — Scapula as in P. dacnicolor. 

 This form of scapula is highly characteristic of the genus 

 Phyllomedusa. 



Triprion Cope. 



T. petasatus Cope. — Scapula as in Hyla maxima. 



BUFONID^. 



In this family the scapula is Usually normal in its proportions ; 

 the pai's glenoidalis is equally developed to the joars acromialis. 

 No impoi'tant variations occur. 



EuPEMPHix Steind. 



E. nattereri Steind. — Scapula normal in its proportions ; 

 slightly longer than praecoracoid ; slender in the middle ; similar 

 in shape to that of Batrachopsis melanopyga. Dividing cleft 

 between the two pars short. 



Bupo Laur. 



B. vulgaris Laur. — Scapula normal, upper border about as long 

 as praecoracoid, lower border a little longer. Shaft stout, sub- 

 triangular ; pars acromialis somewhat diamond-shaped, with a 

 straight, oblique upper edge; pars glenoidalis much depressed, 

 narrower, but equal in length to the jmrs acromialis, from which 

 it branches, forming a Y of which the shafts represent the tail ; 

 pars glenoidalis widely separated from coracoid by paraglenoid 



