174 



BULLETIN 57. UNITED STATES NATIONAL MUSEUM. 



lse at tip. Lower lip conspicuously divided in front. Calcar absent. 

 Interfemoral membrane very narrow, extending to middle of tibia. 

 Tail about half as long as femur, included to middle in interfemoral 

 ■ membrane. 



Species examined. — Phyllonycteris poeyi Gundlach. 



Remarks. — Superficially this genus might be mistaken for a mem- 

 ber of the Glossophaginffi, but it is readily distinguishable by the 

 absence of the calcar and by the narrow interfemoral membrane 

 which does not extend below middle of tibia. The structure of its 

 teeth is strikingly peculiar as compared with that in any of the 

 Glossophagine bats. 



Genus REITHRONYCTERIS Miller. 



333, 



1898. Reithronyctcris Miixeb, Proc. Acad. Nat. Sci. Philadelphia, p. 



July 12, 1898. 

 1904. Rhithronycteris Elliot, Land and Sea Mammals of Middle America 



and the AVest Indies, p. 687. 



Type-species. — Reithronycterisaph- 

 ylla Miller. 



Geographic distribution. — Jamaica. 

 Number of forms. — Only the type 

 species is thus far known. 



Characters. — Similar to Phyllo- 

 nycteris, but floor of brain case ele- 

 vated out of its usual position, so 

 that roof of posterior nares is formed 

 by two longitudinal folds given off 

 probably by the pterygoids and 

 nearly meeting in median line in re- 

 gion usually occupied by basisphe- 

 noid and presphenoid. 



Species examined. — Reithronycte- 

 ris aphylla Miller. 



Remarks. — Through the kindness 

 of the authorities of the Jamaica 

 I have been enabled to re- 

 examine the type of Reithronycteris 

 aphylla, the only specimen by which the genus and species is known. 

 I can therefore correct two inaccuracies in the original account: 

 The tail is, like that of Phyllonycteris, only half as long as the 

 femur, and the teeth do not in the least resemble those' of Brachy- 

 phytta. The teeth, though slightly injured by decalcification, are 

 evidently similar to those of Phyllonycteris poeyi, an animal with 

 which I was not acquainted in 1898. The following differences mav 

 bs noted: There is less contrast in both diameter and height of the 

 upper incisors, the four teeth stand in an almost straight row, and 



Fig. 25.— Reithkonycteris aphylla. Adult 

 male. Type, No. 9, Museum, Institute of Institute 

 Jamaica, xlt. 



