740 



Mi;(4Ar,oGr.os8ifs. 



prominent vertical keel (varying in «i/,e iiidiviilually) on anterior 



inferior surface of symphysis (compare B with A in fig. 71, p. 749). 



Dentition (fig. 08). — Dental formula unmoJitied Rousettine (as 



i' i^ c p^ p' p' m' m^ 



in typical Eonycteris) : 



34. 



, .cp,p3p,mjm„_n]3 



All teeth relatively smaller than in Eon)jctrris, premolars and 

 molars nearly as narrow (linear) as in Mucroglossns, vn^ and in^ 

 somewhat less reduced than in Eonvcteris ; other dental characters 

 as in Eonycteris. Upper incisors minute, subtereto (faintly pointed), 

 spaced; lower incisors faintly but distinctly bilobed. Upper 

 canines with deep vertical groove along front face, lower canines 

 slanted considerably outward, p^ about twice the bulk of an upper 

 incisor; p"" about three times as high as p' (tip nearly at level 

 with middle of canine) and three to four times as long (antero- 

 posteriorly) : p'' intermediate in height between p^ and m' ; m' and 

 m'- in profile practicaliv fiat (no cusp-liko elevation of ridges). 

 p3 much hiifher than p^ (tip nearly at level with middle of canine), 

 p^ intermediate in height between p., and ra^, m^, m^, and m^ in 

 ])rnfile ])ractically flat. 



I'tilate-ridycs (fig. (3915). — 4 + 2+1, i.e. four anterior undivided, 



A B 



Fitr. C9. — I'alnte-ridges. A, Eonycteris spelaa iO.S).2.\); 



U. Meija'oqlosaus vioerinaniii (11.5.5.4). 



■ A -3 (linear), B ?. 



followed by twodivid(d,and one at e.ttrerae posterior border of palate. 

 Tosition of first, second, and third ridges as in Eonycteris (fig. 69 A ), 

 fourth more posterior, its median point at a level with middle of 

 ui' (in Eonycteris with back of p^), fifth and sixth postdental. The 

 only noteworthy difference from Eonycteris is the reduction of the 

 divided ridges from three to two (a fusion of the fourth and fifth 

 ridges of Emi/cferis woiild give a system of palate-ridges similar to 

 that of Meyaioyhssus ; see figures). 



E.vternal characters. — Tongue relatively longer than in Eonycteris, 

 measured from base of epiglottis noticeablj' longer than (in Eony- 

 cteris a little shorter than or equal to) lower jaw, tip narrow and 

 more painted, and filiform papillae longer. Tail often undetectable 

 externally, sometimes traceable by touch as a knob below the skin 

 (postischial vertebrae five, the terminal two or three very small). 



