230 BULLETIN 57, UNITED STATES NATIONAL MUSEUM. 



Upper incisors well developed, without distinct secondary cusps, 

 the outer larger than the inner, and closely crowded against canine, 

 the four teeth almost exactly in line with each other; lower incisors 

 essentially as in Myotis. Canines well developed, not peculiar in 

 form. Second upper premolar (pm 4 ) unusually large, bu]t not pecul- 

 iar in form, its cingulum when unworn produced antero-internally 

 into the faint suggestion of a cusp; anterior premolar not as large, 

 but of essentially the same structure. First and second upper molars 

 with length along outer edge about equal to transverse diameter, 

 the cusps normal in position, the W pattern present but somewhat 

 distorted by the reduced condition of the parastyle; hypocone 

 absent. Third upper molar not unusually reduced, the protocone, 

 paracone, mesostyle, and first commissure of normal size, the second 

 commissure and its terminal cusp both small. The mandibular teeth 

 show no special peculiarities. Skull essentially as in the medium 

 sized species of Myotis. External form peculiar in the projecting 

 tubular nostrils only, the animals otherwise resembling the species of 

 Myotis or Kerinoula; feet rather small; metacarpals not graduated. 

 Species examined. — Murina suilla (Temminck), M. aurita (Milne 

 Edwards), M. griseus (Hutton), M. tubinaris (Scully), M. cyclotis 

 (Dobson), and M. leucogaster (Milne Edwards). The two remain- 

 ing species, M. few Thomas, and M. hilgendorfi (Peters), are so well 

 described (the skull of M. hilgendorfi is figured) that there appears 

 to be no doubt as to their position. 



Genus HARPIOCEPHALUS Gray. 



1842. Harpiocephalus Geay, Ann. and Mag. Nat. Hist., X. p. 259, December, 



1842. 

 1842. Ocypetes Lesson, Nouv. Tabl. R6gne Anim., p. 30 (part; included cav- 



ernarum=liarpia, and suillus). Not Ocypetes Wagler, 1832. 

 1866. Harpy iocephalus Gray, Ann. and Mag. Nat. Hist., 3d ser., XVII, p. 90, 



February, 1866. 

 1878. Harpiocephalus Dobson, Catal. Chiropt. Brit Mus., p. 276 (part). 



Type-species. — Harpiocephalus rufus Gray =Vespertilio harpia 

 Temminck. 



Geographic distribution. — India and the Malay Region. 



Number of forms. — As now restricted this genus includes the type 

 species only. 



Characters. — Externally as in Murina. Skull more heavily built 

 than in the related genus but not differing noticeably in form except 

 that the rostrum is relatively shorter, broader, and more abruptly 

 truncate anteriorly. Teeth (Plates I, II, fig. -i) resembling those of 



