THE FAMILIES AND GENERA OF BATS. 
113 
Remarks. — This genus is well differentiated from Ilipposideros , 
especially by the nearly equal height of rostrum and braincase and 
the conspicuous knife-like development of the sagittal crest in the 
interorbital region (fig. 21 A). The dentition is more modified than 
that of Ilipposideros , as shown by the absence of the small upper 
premolar, the more reduced condition of the third upper molar, and 
the very peculiar position of the secondary cusp of the upper canine. 
On the other hand, the persistence, even in very old individuals, 
of the distinctness of the fused elements of the toes is evidently a 
remnant of more primitive conditions. 
In cranial and dental characters the genera Ilipposideros and 
Asellia show a curious parallelism to Nyctinomus and Molossus. In 
both Ilipposideros and Nyctinomus the sagittal crest is low, a small 
premolar is present, and the third molar has five cusps and three 
commissures, while in Asellia and Molossus , simultaneously with the 
development of a high sagittal crest in interorbital region, the small 
premolar has disappeared and the third molar has lost its third com- 
missure and fifth cusp. 
Genus ANTHOPS Thomas. 
1888. Anthops Thomas, Ann. and Mag. Nat. Hist., 6th ser., I, p. 156, Feb- 
ruary, 1888. 
Type-species. — Anthops ornatus Thomas. 
Geographic distribution. — Solomon Islands. 
Number of forms. — One, the type species. 
Characters. — Similar to Ilipposideros , but with tail reduced to less 
than half length of femur | caudal vertebrae, 4. Upper canine with 
rather large, blunt cusp at posterior base of shaft. Small upper 
premolar (pm 3 ) well developed, forced partly outward from the 
toothrow. Posterior upper molar as in maximum condition in Ilip- 
posideros. Cochleae larger than usual in Ilipposideros , their diame- 
ter more than twice width of basioccipital between them. Lumbar 
vertebrae fused as in Asellia. 
Species examined. — Anthops ornatus Thomas. 
Remarks. — Though closely related to Ilipposideros in cranial and 
dental characters, this genus is at once distinguishable by the greatly 
' reduced tail. 
Genus CCELOPS Blyth. 
1848. Ccelops Blyth, Journ. Asiat. Soc. Bengal, XVII, Pt. 1, p. 251. 
1878. Ccelops Trouessakt, Revue et Magasin de Zoologie, 3 e ser., VI, p. 223. 
1878. Ccelops Dobson, Catal. Chiropt. Brit. Mus., p. 152. 
Type-species. — Ccelops frithii Blyth. 
Geographic distribution. — Known only from Bengal and Java, 
25733— No, 57—07 m- 
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