THE FAMILIES AND GENERA OE BATS. 69 



Genus EONYCTERIS Dobson. 

 1873. Eonycteris Dobson, Journ. Asiat. Soc. Bengal, XLII, Pt. 2, p. 204. 

 1878. Eonycteris Dobson, Catal. Chiropt. Brit. Mm, p. 94. 

 1899. Eonycteris Matschie, Flederm. des Berliner Mus. fur Naturk., p. 89. 



Type-species. — Macroglossus spelceus Dobson. 



Geographic distribution. — Malay Peninsula, Sumatra, Java, and 

 Borneo. 



Number of forms. — The type is the only species yet known. 



Characters. — Externally like Rousettus, except that muzzle is more 

 elongate and the index finger has no claw. Tail and calcar well 

 developed. Tongue with the usual characters of the subfamily, 

 sharply pointed, and highly extensible. Skull not strikingly differ- 

 ent from that of Rousettus, but more slender, and occipital region 

 more deflected, the alveolar line when continued backward passing 

 through or slightly above root of zygoma. Mandible not as heavy 

 as in Rousettus and coronoid not rising as abruptly; otherwise differ- 

 ing only in the character of the symphysis peculiar to the sub- 

 family. Dental formula : 



-2 3. 1. -23456- - 2-2 1-1 3-3 2-2 



12-. 1. -234567*2-2' C l-V pm 3-3' m 3 - 3~ d4 ' 



Upper incisors of equal size, simple, shorter than in Rousettus, 

 but not distinctly different in form or position. Lower incisors ap- 

 parently similar to upper (none seen with unworn crowns) , directed 

 distinctly forward, separated from each other and from canines by 

 subequal spaces about as wide as diameter of incisor at alveolus. 

 Canines slender and not. very large, without secondary cusps and with 

 barely indicated cingulum, the front surface of the upper canine 

 marked by a deep longitudinal groove. Cheek teeth essentially as 

 in Rousettus, but lateral ridges and median grooves less distinct. 



Species examined. — Eonycteris spelcea (Dobson). 



Remarks. — While this genus by the structure of the tongue and an- 

 terior portion of the mandible is evidently a member of the subfamily 

 Kiodotinse, it is the least characteristic of the group, lacking the 

 noticeable deflection of the occipital region that occurs in all the 

 others and showing in the form of the teeth and rostrum a stage of 

 development intermediate between the more typical genera and 

 Rousettus, which may be regarded as occupying a position near the 

 point of departure of the long-tongued group. 



Genus CALLINYCTERIS Jentink. 



1889. Gallinycieris Jentink, Notes from the Leyden Museum, XI, p. 209, 



November, 1889. 

 1899. Callinycteris Matschie, Flederm. des Berliner Mus. fur Naturk., p. 90. 



Type-species. — Callinycteris rosenbergii Jentink. 

 Geographic distribution. — Celebes. 



