THE FAMILIES AND GENERA OP BATS. 175 



the crown of the inner tooth is longer in proportion to its height, less 

 oblique on. cutting edge, and less concave posteriorly; the second 

 upper molar is narrower on lingual side; the lower incisors are 

 slightly smaller and more widely spaced, and the lower premolars are 

 broader in proportion to their length. Skull (fig. 25) with rostral 

 portion relatvely broader than in Phyllonycteris poeyi, and palate 

 wider anteriorly. Between Reithronycteris and Phyllonycteris there 

 appears to be no tangible difference in the tongue, though both are 

 readily distinguishable by this character from Erophylla. 



Genus EROPHYLLA Miller. 



1864. Phyllonycteris Gundlach, Monatsber. k. preuss. Akad. Wissenseh., 



Berlin, p. 817 (part). 

 1878. Phylloiitjctcris Dobson, Catal. Chiropt. Brit. JIus., p. 501 (part). 

 1898. Phi/lloiiyctcris II. Allen, Trans. Amer. Pliilos. Soc, n. s., XIX, p. 



261 (part). 

 1906. Erophylla Millek, Proc. Biol. Soc Washington, XIX, p. 84, June 4, 



1906. ' 



Type-species. — Phyllonycteris bombifrons Miller. 



Geographic distribution. — Bahama Islands and Greater Antilles. 



Number of forms. — Four species of Erophylla have been described : 

 E. bombifrons (Miller), E. planifrons (Miller), E. santacristobalen- 

 sis (Elliot), and E. sezelcorni (Gundlach). 



Characters. — Like Phyllonycteris, but calcar distinct, though short, 

 interfemoral membrane extending to calcar, noseleaf with upright 

 portion represented by an evident, pointed, median projection; skull 

 with zygomatic arches complete, and lower molars all distinctly 

 cuspidate and with noticeable cutting edge. Incisors, canines, and 

 lower premolars essentially as in Phyllonycteris, except that pm * 

 is relatively larger and much more noticeably concave on inner sur- 

 face. Upper molars (Plate IX, fig. 2) differing from those of Phyl- 

 lonycteris in the greater height and more trenchant character of the 

 outer main cusps and the more distinct concavity of the crowns. In 

 m 1 and m 2 there is no trace of the rudimentary mesostyle. First 

 lower molar with a low, but distinct, posterior cusp, and an outer 

 slightly trenchant ridge high enough to cause the concave surface to 

 be directed somewhat inward. Second and third lower molars like 

 first, but considerably shorter, the anterior and posterior cusp rela- 

 tively more, developed and their cutting edge near middle of crown 

 instead of at outer border. 



Species examined. — I have examined all the known species. 



Remarks. — This genus is well differentiated from Phyllonycteris 

 by the structure of its calcar and interfemoral membrane and by its 

 distinctly cuspidate second and third lower molar. The species are 

 also distinguishable from Phyllonycteris poeyi by the sharply pointed 



