464 



PHYLLOSTOMlDiE. 



Sif)iopsis of the Species. 



Ears longer than the head ; front margin 



of the nosB-leaf raised above the front of 



the muzzle ; the last caudal vertebra free J. M. waterhousii, p. 464. 

 Ears as long as the head ; front margin of 



the nose-leaf scarcely defined, continuous 



with the upper lip ; last caudal vertebra 



and half the antepenultimate vertebra 



free 2. M. locourtiamis, p. 467. 



1. Macrotus waterhousii. 



Macrotus waterhousii, Gray, P. Z. S. 1843, p. 21. 



? Macrotus californicus, Baird, Proc. Acad. Nat. Sci. Philad, 1858, 



p. 117 ; Allen, Monogr. Bats of North Amei-ica, p. 3, figs. 2, 3 (head 



and ear), 1864. 

 ? Macrotus mexicanus, Saussure, Hevue et Mag. Zoolog. xii. p. 48G 



(1860). 

 Macrotus minor, Gundlack, Peters, MB. Akad. Bmi. 1864, p. 381. 



The crown of the head is slightly elevated above the face-line ; 

 muzzle narrow, cylindrical ; the distance between the eyes less than 

 the distance of the eye from the end of the muzzle ; a very deep 

 groove on the side of the face immediately beneath and extending 

 slightly in front of the eye ; ears large, oval, longer than the head, 

 conjoined by a deep band arising above and between the eyes ; inner 

 and outer margins of the ear-conch slightly convex, broadly rounded 

 ofE above ; the outer margin shortly notched opposite the tragus : 

 tragus much longer than broad, narrowed in upper third and acutely 

 pointed ; inner margin convex, becoming straight above ; outer 

 margin with a square lobe above the base with a projecting upper 

 angle, above this slightly concave or straight : nose-leaf small, at 

 the extremity of the muzzle, the horizontal anterior portion circular, 

 the front margin bound down to but distinct from the upper Up 

 (Plate XXY. fig. 1) ; the nostrils in the centre of each lateral half, 

 not depressed ; nasal apertures lunate ; the posterior erect leaf arising 

 directly from the posterior margin of the horizontal leaf, tri- 

 angvilar, the vertical angle narrowly rounded off, the front surface 

 smooth, naked, in length equal to the breadth of the horizontal leaf ; 

 lower lip deeply grooved above and in front, the sides of the groove 

 margined by naked raised edges (Plate XXV. fig. 1). 



First phalanx of the middle finger less than half the length of the 

 metacarpal bone. Volar membranes well developed ; the antebrachial 

 membrane extends the whole length of the forearm and includes 

 half the thumb. Wings from the tibi£e near the ankles. Tail long, 

 contained in and produced to the posterior edge of the large inter- 

 femoral membrane, projecting by the last caudal vertebra beyond it ; 

 interfemoral membrane concave between the extremities of the 

 calcanea, which are equal to the foot in length. 



Fur long, scarcely extending upon the membranes ; the inter- 

 femoral is almost naked ; the forearm and legs are quite naked. 



