RHINOLOPHUS LAKVATUS. 



After this concise view of all the species of Rhinolophus which have been found 

 in Java, with those enumerated by M. Geoffroy, I proceed to the description of the 

 Rhinolophus larvatvis. Our animal affords an excellent illustration of the second 

 section of this genus : the nasal membrane is broad, and all the parts are greatly 

 developed, so as to give the face the appearance of being covered with a mask. In 

 its extent and disposition this membrane agrees with that of the Kb. Diadema and 

 Nobilis, and it is only by a very careful examination that any difference of structure 

 can be discovered. Our animal is about one-third smaller than the species just men- 

 tioned, which, although they agree in size and conformation, differ essentially in 

 their colour. The entire length of the Rhinolophvis larvatus, from the extremity ©f 

 the nose to the root of the tail, is three inches, and the expanded wings measvire 

 fourteen inches ; the tail is one inch long. 



The head is short, thick, and abruptly terminated anteriorly, so as to afford a 

 plane surface for the disposition of the exterior portion of the nasal membrane. In 

 its attachment to the neck, it forms nearly a right angle. The neck is swelled, and 

 very short. The length of the animal, without following the curve of the head and 

 face, is no more than two inches and a half. The peculiar attachment of the head 

 is accommodated to the manner in which the Rhinolophi suspend themselves, as is 

 ingeniously stated by M. Kuhl, in his account of the German bats. 



A very distinguishing character of our animal is the form and disposition of the 

 ears. The base is excessively broad, and altogether without that involution of the 

 lower portion of the lobe which occurs, either on one side only, or on the opposite 

 sides, in the other Rhinolophi, and which supplies, in some degree, the place of an 

 oreillon. The anterior margin rises high, forming a curve in its ascent, so that, in 

 the middle, the lobes from the opposite sides nearly approach each other : the extre- 

 mity is acuminate, having the point tending outward ; the posterior margin is very 

 slightly emarginate, and, inclining backward as it approaches the head, continues to 

 form an excessively broad base. The interior of the ear is perfectly naked. 



The nasal apparatvis is bounded above by a broad membrane, stretching trans- 

 versely across the nose, and projecting forward in form of a shelf; it has a very 

 slight transversely projecting ridge in the middle ; the lateral membrane consists of 

 three parallel folds, of which the exterior is shortest, while the interior constitutes a 

 semicircular envelope, as in the Horse-shoe Bat, which has a short obtusely rounded 

 point in the middle. The nostrils have a vertical direction, and constitute indivi- 

 dually a small ovate funnel, surrounded by a narrow membrane. Above these the 



