144 Mr. O. Thomas on 
its Hetophylla-like general characters and tooth-proportions, 
and from Hetophylla by the presence of an ms. 
Nose-leaf not peculiar, about as in Vampyrops, but with 
a minute secondary leaflet behind the main leaf on the top 
of the muzzle in the middle line. ars with a supplementary 
lobule on the antitragus, otherwise normal. Interfemoral 
membrane of medium development ; no trace of a tail. 
Skull very much asin Hetophylla*, but the basioccipital not 
deeply pitted. Nasal openings and palatal bones of normal 
extension, but the palate with many minute vacuities. 
Teeth above. Incisors very small, not touching each other, 
the median ones convergent terminally. Canines and pre- 
molars also very small and pointed, closely similar to those of 
Ectophylla. Molars very peculiar, in that the anterior one is 
small, much smaller than the posterior, and triangular, its 
shape recalling that of the carnassial premolar of a carnivore, 
and quite unlike the transversely produced m' of Vampyrops; 
m? rounded, basin-shaped, without trace of interior cusp, a 
single large antero-external cusp present. 
Teeth below. Incisors four in number, subequal. Pre- 
molars small, not touching each other, though the anterior pair 
are pressed close against the canines, each with asingle main 
anterior cusp and a long posterior keel without cusp. An- 
terior molar with one long antero-external cusp and a low 
postero-external raised edge, its surface broad and hollowed, 
without further cusps. Second molar rather longer than the 
first, oval in section, pointed anteriorly, broadly basin-shaped, 
though not so much so as in Hetophylla, and without interior 
basal cusps: its edges are raised up into cusps at its 
anterior point, where the highest cusp is placed, antero- 
interiorly and postero-interiorly ; these cusps appear to 
correspond respectively to the supplementary median anterior, 
the antero-internal, and the postero-internal cusps of Vam- 
pyrops, there being no trace of the large antero-external cusp. 
Last molar minute, about the size of one of the incisors. 
This highly interesting genus appears to be a modification 
of Vampyrops in the direction of Hctophylla, having a con- 
siderable resemblance to the latter form, but without its 
highly specialized ma, and with the dental formula of the 
former. None of the different subgenera of Vampyrops show 
any special affinity to it, all of them, whatever their dental 
formula, having the characteristic quadrangular m, with a 
marked cusp at its antero-external as well as at its two 
internal angles. 
* Of. Harrison Allen, Tr. Am, Phil. Soc. xix. p. 267 (1898). 
