212 MISS JOAN B, PROCTER ON THE VARIATION 



having a, /\-shnpecl upper edge ; pars glenoidalis also well 

 developed ; dividing cleft short, forming a small central foramen. 



L. dorsalis Gray. — Scapula as in L. ]?eronii. 



L. oruattis Gray. — Scapula more elongated than in L. j}e7-07iii. 



Example. 



Length of praecoracoid 10 units. 



,, scapula 15 ,, 



„ „ shaft 11-6 „ 



Bi-eadth of „ (distal end) 5 ,, 



„ ,, (middle) 2*5 „ 



Length of supra-scapula 15 „ 



Cryptotis Gthr, 



C. brevis Gthr. — ^Scapula equal in length to the praecoracoid ; 

 normal in its proportions. Dividing cleft pierced horizontally as 

 in Megalophrt/s. 



Chiroleptis Gthr. 



0. australis Gray. — Scapula greatly developed, ahout once and 

 thi^ee-quarters length of prjBcoracoid ; slender in the middle. 

 Shaft twice as long as broad at distal end, about once and a 

 quarter length of praecoracoid ; pars acromialis well developed, 

 subtriangular, similar to that of Bactrachopsis tnelanopyga ; 

 pars glenoidalis smaller than j»x<rs acromialis; dividing cleft 

 pierced obliquely. 



Example. 



Length of praecoracoid 10 units. 



,, scapula 17 „ 



„ „ shaft 13 „ 



Breadth of „ (distal end) 7 „ 



„ „ (middle) 2 „ 



Length of supra-scapula 1 2 (?) ,, 



C. platycep>halus Gthr. — Scapula similar in form to that of 

 0. australis, but much shorter in proportion. 



Example. 



Length of praecoracoid 10 units. 



,, scapula 11 '2 ,, 



Heleioporus Gray. 



//. alhopunctatus Gray. — Scapula abnormally developed ; twice 

 and a half as long as praecoracoid ; slender in the middle, 

 greatly expanded at distal end, where it is almost the length of 

 the praecoracoid in width. Shaft once and three-quarters length 

 of praecoracoid ; jix<rs acromialis well developed, completely in 

 contact with ci'escentic head of praecoracoid ; pars glenoidalis 

 also in contact with head of praecoracoid, partially separated 



