98S CTXOPTEEUS. 



larger species fused into a sagittal crest ; zygomatic arches rela- 

 tively heavy, curved upward posteriorly by fascia temporalis. 

 Palate simple, median length rather more than twice the greatest 

 interdental breadth ; maxillary tooth-row extending to inferior 

 margin of orbit ; length of postdental palate subeqnal to breadth 

 between p^-p^, its lateral margins forming straight lines converging 

 backwards, breadth at palation border a little greater than between 

 bases of canines. Foramen rotundum and ovale usually fused. 



Fig. 48. — CynnpfeTus sphinx tittliescheilus, J, Biiitenzorg, Java. 

 No. 9.1.5.105. \, with front view | (linear). 



Tympanic ring as in Eousettus, broader than in Pleropvs. Eami 

 of mandible heavy, symphysis short, snbvertical, coronoid high, 

 broad, rather stceplj- ascending, angular process distinct, rounded, 

 condyle considerably above level of alveolar line. 



Dentition (figs. 48, 49).— ^' ^^ " P' P' P' "^' x 2 = 30*. 



\ \ c p, p3 p^ m^ m^ 



* Dental anomalies, in about 200 skulls, representing all forms known.— Of 

 the seven anomalies observed no less than three are instances op the absence of 

 one i|, either right or left (C. h. angulatus, ad., teeth worn, 60.3.19.1400 ; C. h. 

 hrachyoHs, ad., teeth unworn, 97.1.2.9; C. h. javanictis, ad., teeth unworn, 

 79.11.21.68); this anomaly is cf some interest as, so to say, foreshadowing those 

 Cynopterine genera in which the middle pair of lower incisors is permanently 

 lost. One skull shows a reduplication of i- on left side (C. b. avf/iilatiis, imm., 

 6.11.6.42). The left m, is absent in two skulls (C b. angidattis, ad., teeth 

 nearly unworn, 8.2.5.13; C. b. viiviitus, ad., teeth slightly worn, U. S.N. M. 

 141243), but in one (the former) of these the jaw looks at that point diseased. 

 A small m,, quite hidden in the bone, is present on the left side in one skull 

 (C. h. javanicui, imm., 9.1,5.73). 



