THE FAMILIES AND GENERA OF BATS. 
69 
Genus EONYCTERIS Dobson. 
1873. Eonycteris Dobson, Journ. Asiat. Soc. Bengal, XLII, Pt. 2, p. 204. 
1878. Eonycteris Dobson, Catal. Chiropt. Brit. Mus., p. 94. 
1899. Eonycteris Matschie, Flederm. des Berliner Mus. fiir 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. - 2 3 4 5 6 - .2-2 1-1 3-3 2-2 
1 2 1. - 2 3 4 5 6 7 * 2 - 2’ c 1 - 1’ pm 3 - 3’ m 3 - 3~' 34 ’ 
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 (hone 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. Gallinycteris Jentink, Notes from the Leyden Museum, XI, p. 209, 
November, 1889. 
1899. Gallinycteris Matschie, Flederm. des Berliner Mus. fiir Naturk., p. 90. 
Type-species. — C allinycteris rosenbergii Jentink. 
Geographic distribution. — Celebes. 
