666 



PENTHETOR. 



Differential characters. — Similar to Thoopterus, but with only 

 one pair of lower incisors (i^ absent), outer upper incisor reduced 

 to half tho length of inner, p^ and m, without surface cusps, tail 

 similar in length to that of Cyaopterus, membranes from first toe. 

 Forearm 58-63 mm. [One species. Hah. Borneo and Malay 

 Peninsula.] 



Fig. 58.— Penthetor lucasi, S • Singapore. No. 94.6.19.4. 

 Shaded figures i (linear) (except front view, which is f ), outlines j. 



Skull, (fig. 58). — General shape quite as in Cynopierus^ except 



.r.'ii -(jrii! ' 



