ON THE GLOSSOPHAGIN®. 261 
PHYLLONYCTERIS. 
Upper incisors separated from the laterals by wide intervals; naked skin-fold 
defining nostrils laterally ; nose leaf not reaching aboye the level of approximate club- 
shaped gland masses. Thumb the largest in the group nearly one-fourth the length of 
the forearm. Length of forearm, 45 mm. Teeth with cusps nearly obliterated, no W- 
pattern on molars. Large vacuity between occipital bone and pars-squamosal of the 
temporal. Fimbriz not arranged in rows, but form a uniform coyering to the tip of the 
tongue. The first and fifth metatarsal bones longest. The first row of phalanges of third 
to fifth digit of manus, same length as the second row. Calcar wanting. Zygomatic 
arches fibro-cartilaginous. 
Dental formula: i. 4 — ¢. + — prm. 3? — m.3 = 21 
Phyllonycteris was described by Gundlach, but published under the care of Peters, 
who does not appear to have known the form. Gundlach correctly compares the genus 
to Brachyphylla. Dobson follows Gundlach closely, his description being little more 
than a translation of the original article. When he departs from the text he makes 
statements which do not agree with the specimen on which the present essay is based. 
Thus he says, “the incisors are as in Glossophaga; the molars like those of Carollia 
3 
(Hemiderma), but the W-shaped cusps scarcely developed ;” whereas the upper lateral 
incisor is twice the size of the central and the zygoma may be complete. With the 
exception of the skulls, Dobson did not study Phyllonycteris at first hand. 
Phyllonycteris sezecorm Gundl. 
Auricle simple, ovate, with rounded pointed tip. External outline without subdivision 
or inner lappet near the base. Internal basal lobe scarcely free. Tragus convex on inner 
side, straight on outer. Both sides marked by three, coarse, teeth-like processes. Basal 
point scarcely longer. 
Nose leat simple, obtuse with internarial pedicle. The perinarial flange is lamillar 
and distinct from gland mass. The structure last named well defined, apparently 
crossing muzzle back of the nose leat, but two club-shaped masses are nearly approximate. 
Upper lip high without warts. Interfemoral membrane deeply incised, extending from 
distal third of the tail to the caleaneum. The tail is short, scarcely projecting beyond the 
interfemoral membrane. The fur long and silky above, light gray tipped, subtip sooty, 
the rest of the hair pale verging to white. Beneath much paler, nearly uniform gray. 
The tip of hair tawny, the rest of the hair of a somewhat lighter shade. 
Almost the entire field of the endopatagium filled with widely separated nearly 
equidistant vertical muscle fascicles, There is no reticulated arrangement of fibres, The 
