10 MR. A. MURRAY ON A NEW BAT. [Jan. 14, 



which it springs for the source of this development. It does not 

 extend much further back than the lower canine teeth ; but there is 

 a slight plait or perceptible line running on each side all the way to 

 the back of the mouth, giving the appearance of a second thin flat 

 tongue lying in the hollow of the mouth, tied down like the tongue 

 of a crocodile ; but the separation here is a mere trace, and it is only 

 the fringed margin in front which is free. 



The neck is distinct, and the skin has the appearance of having 

 some cellular space between it and the muscles. 



The body is oblong and compact ; the ribs descend far, and the 

 lower ribs are very large ; the stomach is moderate in size, furnished 

 internally with several large transverse folds ; the small intestines 

 are not very long ; there is no ceecum. 



The arms have the thumb and index unguiculate, the rest of the 

 fingers are without claws ; the thumb has two phalanges, the rest have 

 three phalanges. The thumb is united to the wing by a membrane 

 stretching on both sides over the whole of the proximal and half of 

 the distal phalanx ; the proximal phalanx of the thumb is shorter 

 than the distal. The winged membrane is not extended across the 

 back, but is very ample ; the winged space between the third and 

 fourth fingers, and between the fourth and the body, has in its middle 

 numerous longitudinal bundles of muscular fibre interwoven without 

 attachments, and one or two similar transverse bundles ; these are 

 probably for the purpose of assisting in the folding of the wing. 

 Along these bundles of muscular fibre the membraneous wing is 

 closely wrinkled; and there is little doubt that they will also strengthen 

 the membrane where they occur. 



The hind feet are uniform and all unguiculate ; they are united to 

 the body by an interfemoral membrane, which has a single large 

 bundle of muscular fibres stretching obliquely across from the foot 

 to the coccyx. 



The testicles are situated under the skin on each side of the male 

 organ, and are round. 



There is no tail. 



The length of the whole body, in the specimen from which the 

 above description is taken, is nearly 7 inches ; the length of the 

 head 3^ inches, its depth about 1-^ inch. The stretch of wings 

 is 28 inches across. 



The most remarkable features in this animal are its large hammer- 

 shaped head, and the great external development of its lips. Its 

 whole structure is essentially that of a Pteropine Bat, with some 

 modifications showing a tendency towards the Rhinolophi. No 

 species having any of the nasal appendages peculiar to that section 

 of the Bats has yet been found among the Pteropine Bats. They are 

 strictly frugivorous, and have the nose like that of a fox or dog. 

 The present species, although it has not any nasal appendages, has 

 labral expansions which may possibly be analogous to them, and the 

 animal may possibly have peculiar habits to which the structure of 

 these organs is especially adapted. 



Unfortunately, in the only specimen yet received, the stomach and 



