6iS 



MF.G.KROl'S. 



depth of the rostrum auteriorly and the leiigtheuiiig of the nasals, 

 jimch more vertical in position. Palate relatively broader, greatest 

 breadth across external surfaces of maxillary tooth-rows subequal 

 to (in Cyno2->te.rus distinctly less than) c-m'; maxillary tooth-row 

 forming a curved (in Cijnoptenis a quite or very nearly straight) 

 liue from o-m\ Other cranial characters unmodified Cynopterine; 

 postorbital foramina large ; foramen rotundum and ovale fused. 



i' i^ c n' D^ u* m' 



Dentition (fig. 52). -. — LliJ^ x 2 = 28. 



. ^cp.p^p^m.m. 



Upper incisors Cynopterine in general shape, but i^ shorter, about 

 two-thirds or one-half the length (height) of i', i^ absent, and 

 lower canines more closelj' approximated ; i^ unmodified in shape 

 and si/e. Canines relatively shorter than in Ci/Doj^terKS, particu- 

 larly those in lower jaw ; external and anterior surfaces of upper 

 canines without trace of vertical groove (as in Cynopterus) ; as a 

 rule no trace of secondary cusp in canines (in one skull, 3.2,6.82, 

 a distinct indication of such cusp in upper canines, abo\e middle 

 of inner edge, homologous with the cingulnm cusp always present 

 in Cynopterus). Premolars ar^d molars rather shorter and broader 

 than in Cynopte)~us (broadening particularly conspicuous in p^ and 

 1)^), m' distinctly reduced, smaller than p^, and also m, relatively 

 slightly smaller than in the related genus. 



P(ilate-rid</es (fig. 52). — Not dift'ering essentially from those of 

 Cytwpierus (fig. 50, p. 591). 



Kvternal churacters. — Muzzle considerably deeper anteriorly than 

 in Ci/nopterus ; nostrils slightly more subtubuhir. No external 

 lail ; interfemoral undeveloped or extremely narrow in centre, 

 Avell-developed along tibia. Other characters essentially as in 

 d/noi>teru/i ; odontoid papillae on inner side of lips exactly as in 

 ihe related genus ; antebrachial membrane not extending beyond 

 basal third of first phalanx of pollex ; lateral membranes inserted 

 on first toe (near distal extremity of first phalanx); vertical fasciaj 

 of mcsopatagium (those crossed by the internal cutaneous line) 

 about 14 (one specimen only); all digits, ]iarticularly third and 

 fourth, a little longer than in Cynopterus, owing chiefly to a slight 

 lengthening of the metacarpals and proximal phalanges (see table 

 below, showing in upper row the wing-indices of Mega'rops, calcu- 

 lated from three specimens, in lower row those of Cynopterus) ; 

 calcar about one-half of hind foot with claws. Distribution of fur 

 of single species known as in Cynoptn-us, except that the tibiae are 

 more distinctly hairy above ; C"lour of fur of upperside a tinge of 

 jiale brown not exactly matched by auy species of Cynopterus. 



