ON THE GLOSSOPHAGIN#. 263 
of palatal surface. First premolar very small, nodular, about one-fourth the size of the 
second and not much larger than the lateral incisor. Second premolar triangular, with- 
out basal cusp; posterior half of palatal surface concave. Molars without well-defined 
cusps and decrease in size gradually from before backward. The third molar one-half 
the size of the second. ‘The protocone, paracone and metacone scarcely indicated ; no W- 
shaped pattern.* 
Lower lateral incisors twice the size of the centrals; all are non-contiguous and 
nodular. Canine with conspicuous concave heel; all other parts convex; cingulum 
extends inward so as to lie back of the lateral incisor. The premolars thick and robust, 
subequal ; the first smaller. The molars decreasing in size from before backward without 
details. 
Of the measurements it is noted that the first phalanx of the first digit is scarcely 
longer than the metacarpal bone. In the second digit the single phalanx is one-tenth 
the length of the corresponding metacarpal bone. The entire second digit is as long as 
the third metacarpal bone. In the third digit the first and second phalanges are equal— 
the third phalanx is nearly one-half the length of the second. The terminal cartilage of 
the fourth digit is moderately spatulate, and that of the fifth digit is deflected toward the 
body. The wing membrane attached to the tibia at the distal seventh or to the ankle. 
Interfemoral membrane attached to tip of the small calcaneum. 
The Skeleton —The sternum is boldly keeled over the presternum and metasternum. 
The ribs are twelve in number. The first costal cartilage is discoidal. The humeral 
pectoral crest is relatively low and not half the diameter of the proximal end of the bone. 
The fifth metatarsal bone is much the largest of the series. Palatal rug eight, last three 
to four interrupted in centre. The first and fifth metatarsals are longer than the others. 
The bones of the first row of phalanges of the toes are equal. 
* Peters and writers following him give all glossophagine genera W-shaped pattern of molars. I have had no oppor- 
tunity of examining the type of Phyllonycteris in the Berlin Museum, but I have received through the kind offices of Mr. 
Paul Matschie a photograph of the skull which I find conforms to the account above given. 
A. P! S.— VOL, Xix. 24, 
