THE FAMILIES AND GENERA OF BATS. 



233 



commissures well developed, the area of the crown about half that 

 of first or second ; lower molars with all the cusps present and normal 

 in form, no great contrast in height of protoconid and hypoconid 

 in m ! and m ,. Skull (fig. 38) slender and lightly built, the braincase 

 large, smoothly rounded and abruptly elevated anteriorly, the rostrum 

 slender and weak. There is no indication of sagittal crest or of 

 supraorbital or lachrymal ridges. Nares very narrow, the width 

 of the aperture as viewed from above scarcely or not half the length. 

 Anterior palatal emargination about as wide as deep. Posterior 

 extension of palate narrowed gradually backward, much as in Nata- 

 lus; hamulars very short. Audital bullae very small, covering much 

 less than half surface of large 

 cochleae. Ears moderately long (ex- 

 tending slightly beyond nostrils when 

 laid forward), separate, slightly fun- 

 nel-formed owing to the fact that 

 the outer border arises slightly in 

 front of the inner, and its lower por- 

 tion is unusually widened; tragus 

 long and very slender. Muzzle sim- 

 ple. Third and fourth metacarpals 

 about equal, fourth slightly shorter. 



Species examined. — K&rivoula af- 

 ricana Dobson, K. brunnea Dobson, 

 K. hardwickii (Horsfield), K. harri- 

 soni Thomas, K. minuta Miller, K. 

 papillosa (Temminck), K. papuensis 

 Dobson, K. picta (Pallas), K. pu- 

 silla Thomas. 



Remarks. — Among Old World bats 

 the members of this genus are recog- 

 nizable by their small size, delicate 

 form, distinctly funnel-shaped ears, 

 with very long, slender tragi, and the absence of peculiar develop- 

 ments of the nostrils, canines, or other parts. The fur is long and 

 soft, and in some species the wing membranes have a conspicuous 

 color pattern. Superficially they resemble some of the Natalidse, 

 but the lengthening of the legs and tail is much less. 



Genus PHONISCUS Miller. 



1905. Phoniscus Miller, Proc. Biol. Soc. Washington, XVIII, p. 229, Decem- 

 ber 9, 1905. 

 Type-species. — Phoniscus atrox Miller. 

 Geographic distribution. — Eastern Sumatra. 

 Number of forms.— Only the type species is known. 



Fig. 



-Kerivoola hardwickii. Adult 



male. Western Java. No. 141591. x2J. 



