80 



ZOOLOGY. 



II. GYMNORIIINA. 



Bats without upright appendage on nose. 



A. Nostrils circular; wing-membranes narrow; tail 



either much longer or shorter than interfcmoral 



membrane ..NOCTILIONIDAU. 



B. Nostrils subelliptical; wing-membranes ample; tail 



inclosed in iuterfemoral membrane ; the final joint 



only in some instances exserted VESPERTILIONIDAE. 



FAM. PHYLLOSTOMATIDAE. 

 Leafcnosed Bats. 



CHARS. llostrnm surmounted by an upright appendage. This expression, though 

 not diagnostic of the i'amily among all its allies, distinguishes our representative from 

 other North American bats. 



Genus MACROTUS, Gray. 

 Macrotus, GRAY, Proc. Zool. Soc., 1843, 21. ALLEN, Monog , 1. 



OO 11 9O ** ^ If! 



CHARS.-Teeth: I., - ^; C., i ', ; P., ^; M., f^ = = 34. Skull papery, with 



J J 11 o o o o lo 



inflated cranial and tapering rostral portion and slight sagittal crest. Nose-leaf si mple, 

 erect, acuminate, triangular. Under lip cleft. Bars large, joined. End of tail ex- 

 serted beyond iuterfemoral membrane. 



MACROTUS WATERHOUSII, Gray. 



ILeai-aiosed I3a4. 



Macrotus waterhousii, GRAY, Proc. Zool. Soc. Loud., 1843, 21. 



Macrotus californieus, BAIRD, Proc. Phila. Acad., 1858, 117; Rep. Mex. B. Surv., 185!), 



ii, 4, pi. i, f. 2. H. ALLEN, Monog., 3. COUES, Am. Nat., i, 1807, 283. 

 Macrotus mcxicanus, DE SAITSSURE, Rev. Mag. Zool., I860, 480. 

 " Mcgadcrmatidcc, sp. 1 ?", J. A. ALLEN, Bull. Mus. Comp. Zoo!., iii, 175. 



CHARS. Central upper incisors large, chisel-shaped; the lateral small, pointed, 

 converging; canines small, simple; anterior premolar thin, compressed, unicuspid, 

 with small posterior basal snag ; lower incisors crowded, obscurely trilobed ; canines 

 with basal snag; first and second premolars with basal ridge. Head long; face bairy; 

 head nearly naked behind junction of the ears; eyes rather large, almond-shaped ; 

 nose-leaf acuminate, higher than broad; ears very large, oval, sparsely hairy, joined 

 by a membrane. Tragus lanceolate ; not quite half as high as auricle. Under lip 

 cleft. Thumb slender, long. End of tail exserted. Heel large. Wing-membrane reach- 

 ing ankle. Color grizzled or watered the fur indistinctly tricolor at base white, 

 then fawn ; at the tips gray on the upper parts of the body ; white below. Length 

 to end of tail, 3^-4 inches; expanse, 10-11 ; tail, !-!; ear, about 1 high; fore-arm, 

 1J-2; shin, f-f : nose-leaf, i high. 



HABITAT. West Indies, Mexico, and southern border of the United States. 



