1861.] MR. R. F. TOMES ON THE GENUS VAMPYRUS. 105 



C. (Schizostorna, Gervais.) 



General form, as well as nose-leaf and ears, as in Vampyrus au- 

 ritus, but the wing-membranes merely extending to the extremity 

 of the tibia. 



Dentition. — Incisors -^ ; premolars |^. 



First upper premolar smaller than the second, somewhat com- 

 pressed. 



First lower one larger than the second, and rather compressed, 

 second and third of nearly equal size. 



Ex. Phyllostoma elongatum, Gray,Voy. Sulph. Mamm. pt.l. 

 p. 19. pi. 8, 1843 (not P. elongatum of Geoffrey). 



Schizostoma minutum, Gerv. Voy. Casteln. Mam. p. 49. pi. 7 

 et 10, 1855. 



Phyllostoma scrobiculatum, Wagn. Supp. Schreb. v. 027, 

 1855. 



Obs. I have compared examples of this Bat collected during the 

 travels of M. de Castelnau with the original of Dr. Gray's Phyllo- 

 stoma elongatum in the British Museum, and find them identical. 

 M. Gervais says, " M. Westphal-Castelnau nous en a remis un ex- 

 emplaire de la province de Bahia. Celui-ci a ventre gris-brun, 

 comme tout le reste du corps." This describes the original specimen 

 pretty accurately, and agrees very well with the plate given by Dr. 

 Gray, which seems to have been overlooked by M. Gervais. A con- 

 siderable number of similarly coloured specimens have been received 

 from M. Salle, collected in Oaxaca, Mexico. The removal of this 

 species from the genus Phyllostoma renders needless the specific 

 name of scrobiculatum given to it by M. Wagner, as, with the generic 

 name of Vampyrus, it need not be confounded with the Phyllostoma 

 elongatum of Geoffroy. 



Its generic qualifications appear to be those of Vampyrus spec- 

 trum, with the addition of a tail, with much shorter hind limbs, and 

 wing-membranes which do not extend beyond the distal extremity 

 of the tibia. It differs, too (and the difference indicates a more typical 

 form), in having the second premolar, in the lower jaw, much smaller 

 than the first. 



D. (Lophostoma, D'Orb.) 



No^S^ving seen a specimen of the Lophostoma sylvicolum of 

 D'Orbigny,^! can only refer to the figures and description of the 

 original describer, and to those more recently given by M. Gervais 

 in his account of the Chiroptera collected during the travels of M. 

 de Castelnau. -^ 



General outline rather m&rejike that of Phyllostoma than in the 

 preceding species, the vrings being scarcely so broad, and the ears 

 relatively somewhat smaller. "Wing-membranes extending to the 

 distal extremity of the tibia. Tail as in the last two species. 



Dentition. — Incisors - ; premolars ^. 



