108 BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 
Phyllorhinae and Rhinolophi. The Rhinolophidae are here for the 
first time regarded as a family distinct from the Hipposideridae. 
Principal subdivisions . — The family Rhinolophidae contains the 
genus RMnolophus only. 
Genus RHINOLOPHUS Laeepede. 
1799. RMnolophus Lacepede, Tabl. ties. div. sdusdiv. ordres et genres des 
Mammiferes, p. 15 ( ferrum-equinum ). 
1836. Rliinocrepis Gervais, Diet. Pittoresque d’Hist. Nat.. IV, Pt. 2, p. 617 
(attributed to Geoff roy and Cuvier, Mag, Encyclopedique, 1795, but the 
name does not occur in tlie paper referred to). 
1847. Aquias Gray, Proc. Zool. Soc. London, p. 15 ( Indus and trifolwtus) . 
1866. Phyllotis Gray, Proc. Zool. Soc. London, p. 81 {pMlippensis ; not 
Phyllotis Waterhouse, 1837). 
1866. Ccelophyllus Gray, Proc. Zool. Soc. London, p. 427 ( coelophyllus ), 
1878. RMnolophus Dobson, Catal. Chiropt. Brit. Mus., p. 100. 
1901. Euryalus Matschie, Sitzber. Gesellscli. naturforsch. Freunde, Berlin, 
p. 225 ( mehelyi ). 
Type-species — V espertilio ferrum-equinum Schreber. 
Geographic distribution. — Tropical and temperate portions of the 
Old World, east to the Philippine Islands, New Guinea, and north- 
eastern Australia. 
Number of forms. — About 105 forms of RMnolophus are now 
recognized.® 
Characters. — Dental formula (Plates I, II, fig. 1) : 
- 2 -. 1. - 2 - 4 5 6 7 .1 - 1 1 - 1 2 -2 
12-. 1. - 234567 * 2- 2’ C l-l’ pm 3-3’ 
m 
HF 2 - 
Upper incisor very small, but usually well formed and with distinct 
rounded crown with slight cusp on inner side. Lower incisors trifid, 
the outer larger than the inner, the four teeth forming a continuous 
row between canines. Upper canines heavy, but simple in form, 
without secondary cusps or conspicuous cingula. .Lower canines 
rather weak. First upper premolar (j?m 3 ) and second lower pre- 
molar small, functionless, usually crowded quite out of the tooth row. 
Other teeth showing no special peculiarities ; m 1 and in m 2 without 
hypocone, m 3 with five cusps and three commissures, in most species 
a rudimentary fourth, the crown area of the tooth much more than 
half that of m 1 or m 2 . Lower molars with the cusps all well devel- 
oped and normal in position. Skull with distinct sagittal crest, small 
audital bullae, and large cochleae. Basisphenoid pits absent. Tail 
present, well developed. 
Species examined . — Probably half of the known species have been 
examined during the preparation of this paper, including skeletons of 
RMnolophus ferrum-equinum (Schreber), R. affinis Horsfield, R. 
arcuatus Peters, R. capensis Lichtenstein, R. cornutus Temminck, 
R. hipposideros (Bechstein), R. larvatus Milne Edwards, R. minor 
Horsfield, and R. pearsonii Horsfield. 
« See Andersen, Ann. and Mag. Nat. Hist., 7th ser., XVI, pp. 648-662, Decem- 
ber, 1905. 
