SCOTONYCTKUIS. 



5G5 



Incisors and canines unmodified Epomophorinc. Premolars and 

 molars unusually short (antero-])osteriorly), broad, with rounded 

 corners, hence shortly-oval or subcircular in outline (compare the 

 subcircular p' and m^ M'ith the long and narrow corresponding 

 teeth ot Nationi/ctens), and gradually decreasing in size (transverse 

 section) from pHo m' and from p^ to m„ m, being distinctly smaller 

 than p^, and m' reduced to half the size of p\ p' and p higher 

 than usual (p.^ about twice as high as pj, with inner cusp com- 

 pletely fused with outer (p^' very similar in shape to upper canine 

 but only two-thirds Us height). Outer ridge of p', m', p and m' 

 rather high, inner ridgo low, but perfectly separated from outer' 

 in^ subequal in size to p,. 



Pah(te-rid<jes.~^ot examined. From the published figure (I. i c ) 

 which docs not show the extreme anterior ridges distinct enough' 

 It would seem that there are six ridges on the interdental a°nd 

 anterior postdental palate separated by a narrow space from five 

 posterior crowded dentate ridges. First ridge at postcanine 

 diastema, second at ]>\ third at p', fourth at m', fifth and sixth at 

 level of zygomatic processes of maxillaries. The four anterior cf 

 tiiese ridges correspond very closely in position to, and are probably 

 homologous with, the four anterior ridges of Kanomjcteris (fig. 41, 

 p. 501), all the other ridges together to the whole system of 

 postdental ridges in Nanonijcteris. 



E.vternal characters.—Mwile as in Nanom/vh'ris ; ears distinctly 

 smaller, but scarcely differing in shape. Tail, as usual iu Eno- 

 mophonne bats, reduced to a small rudiment more easily 

 perceptible by touch than by eye; iiiterfemoral perfectly well- 

 developed both in centre and along hind limb. Lateral membranes 

 inserted on first toe (middle of first phalanx) ; vertical fasciiE 

 ot mesopatagium about 20-23 ; the whole of the wing-membranes 

 in dried condition of a peculiar reticulated appearance (in live 

 specimens probably pale-coloured ; compare Casin>/ctcris). Pollex 

 distinctly longer than in Nanonycteris ; other digits very little 

 differing, except perhaps in the rather shorter metacarpals and 

 longer first phalanges of the third and fourth digits (see table 

 below: m upper row wing-indices of Scoioxycteris, (Calculated from 

 two adult specimens, in lower row those of \\(n,onyrteris for com- 

 parison). Distribution of fur as in ^'anonyeteris ; "colour of singLo 

 epecies known pale, with a very conspicuous white patch "on 

 rostrum in front of and between the eyes, and a smaller white patch 

 behind the eyes, but without white tufts at base of ears. 



