OF THE SCAPULA IN THE BATRACH1A. 211 



Hylodes Fitz. 



H. raniformis Blgr. — Scapula a little shorter than the pra?- 

 coracoid, but well developed. Pars glenoidalis smaller than pars 

 acromialis ; dividing cleft short. 



H.fleischmanni Boett— In this species the scapula is subject 

 to slight individual variation. It may be equal to or a little 

 longer than the praacoracoid. 



H. lineatus Schn. and H. martinicensis Tsch.— The scapula is as 

 in II. raniformis. 



The scapula in Hylodes is somewhat like that in Hyla as 

 regards the relative proportions of the shaft, pars acromialis, and 

 pars glenoidalis. They differ, however, in that the dividing cleft 

 is short in Hylodes, forming a very small central foramen instead 

 of a very large one, as in Hyla. 



Ceratophrys Boie. 



C. boie Wied.— Scapula greatly developed, once and a half 

 as long as prsecoracoid. Distal end of shaft about twice 

 width of proximal end ; pars acromialis and pars glenoidalis 

 normal ; dividing cleft short, forming a very small central 

 foramen ; a small portion of acromion cartilage exposed between 

 head of praacoracoid and end of pars acromialis. 



In C. ornata Bell and C. americana D. & B. the scapula is as 

 in C. boie. 



Example. 



Length of pra?coracoid 10 units. 



„ scapula 15*2 „ 



„ „ shaft 11 „ 



Breadth of „ (distal end) 5 „ 



„ (middle) 2-3 „ 



Length of supra-scapula 13*7 ,, 



Leptodactylus Fitz. 



L. pentadactylus L.— Scapula equal to or slightly longer than 

 prrecoracoid ; stoutly formed. Shaft broad, half length of pra?- 

 coracoid ; pars acromialis well developed, partially separated 

 from head of praacoracoid by acromion cartilage ; pars glenoidalis 

 well developed, strongly depressed; dividing cleft short and 

 broad, forming an oval foramen, pierced horizontally, hardly 

 visible from outer view. 



L. ocellatus L. — Scapula as in L. pentadactylus. 



Hylorhina Bell. 



H. silvatica Bell. — Scapula as in Hyla. 



Limnodynastes Fitz. 



L. peronii D. & B. — Scapula well developed, longer than praa- 

 coracoid ; distal end twice the width at the middle. Shaft as 

 long as prcecoracoid ; pars acromialis somewhat diamond-shaped, 



