110 BULLETIN 57, UNITED STATES NATIONAL MUSEUM. 
Remarks. — While the Hipposideridoe are closely related to the 
RhinolophidaQ, the more highly modified character of the feet and of 
the pectoral and pelvic girdles appears to be of sufficient importance 
to allow the group to stand as a distinct family. 
History. — The history of the family has been sufficiently treated 
under the family Khinolophiclae. 
Principal subdivisions. — Eight genera of Hipposideridse are now 
known. 
KEY TO THE GENERA OF HIPPOSIDERimK. 
Zygoma expanded into a wide plate, the height of which is nearly or quite 
equal to distance from m 3 to glenoid fossa. 
Braincase scarcely higher than rostrum ; sagittal crest low, normal, 
Tricenops, p. 115. 
Braincase much higher than rostrum ; sagittal crest terminating ab- 
ruptly in front of middle of braincase Rhinonycteris, p. 114. 
Zygoma not specially expanded. 
Rostrum less than half as long as braincase ; nasal inflation inconspic- 
uous : Cloeotis, p. 114. 
Rostrum at least half as long as braincase ; nasal inflation conspicu- 
ous. 
Outer lower incisor separated from canine by space nearly equal to 
width of its crown ; upper molars with styles unusually well 
developed Ccelops, p. 113. 
Outer lower incisor in contact with canine ; upper molars with 
normal styles. 
Sagittal crest chiefly developed in interorbital region ; toes 
with traces of original phalanges Asellia, p. 112. 
Sagittal crest not chiefly developed in interorbital region; 
toes without traces of original phalanges. 
Transverse diameter of cochlea less than twice width of 
basioccipital Hipposicleros, p. 110. 
Transverse diameter of cochlea more than three times 
width of basioccipital Anthops, p. 113. 
Genus HIPPOSIDEROS Gray. 
1831. Hipposideros Gray, Zoological Miscellany, p. 37 ( speoris ). 
1837. Phyllorhina Bonaparte, Iconogr. della Fauna Italica, fasc. XXI 
{diadema) . 
1866. Macronycteris Gray, Proc. Zool. Soc. London, p. 82 {gig as). 
1866. Gloionycteris Gray, Proc. Zool. Soc. London, p. 82 {armigera). 
1866. Speorifera Gray, Proc. Zool. Soc. London, p. 82 {vulgaris) . 
1866. Rhinophylla Gray, Proc. Zool. Soc. London, p. 82 {lahuanensis) . Not 
Rhinophylla Peters, 1865. 
1866. Chrysonycteris Gray, Proc. Zool. Soc. London, p. 82 {fulvus). 
1871. DoryrMna Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, p. 
314 {cyclops). Subgenus of Pliyllorhina=Hipposideros. 
1871. Sideroderrha Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 
p. 324 {fuliginosa) . Subgenus of Phyllorhina= Hipposideros. 
1871. Ptychorhina Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 
p. 325 {caffra). Subgenus of Phyllorhina=Hipposideros. 
1871. Cyclorina Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 
p. 326 {ol)scura and doriw). Subgenus of Phyllorlii n a -—Hipposideros, 
