72 Kenneth T. Wilkins 



Order Chiroptera 



Family Mormoopidae 



Mormoops megalophylla (Peters) 1864 



Material. — Cranial and post-cranial material (UF 3860-3866) as 

 described by Ray et al. (1963). 



Remarks. — Identification was established by Ray et al. (1963), 

 who compared Rock Springs Mormoops with samples of the two living 

 species of the genus. Kurten and Anderson (1980) noted Rock Springs as 

 the only Pleistocene occurrence of the species in continental North 

 America. 



Family Vespertilionidae 



Myotis austroriparius (Rhoads) 1897 



Material. — Skull with partial maxillary dentition (UF 8925); ros- 

 trum with partial maxillary dentition (UF 8926); 6 dentaries with partial 

 dentitions and 1 edentulous dentary (UF 8927); 20 humeri (UF 8928); 25 

 radii (UF 8929); 30 metacarpals (UF 8930); 4 femora (UF 8931). 



Remarks. — This material is assigned to M. austroriparius rather 

 than to M. grisescens Howell 1909 because of its relatively small size. 

 M. austroriparius is a very common cave-dwelling bat of the karst 

 regions of present-day Florida (Rice 1957). 



Order Edentata 



Family Dasypodidae 



Holmesina septentrionalis (Leidy) 1889 



Material— 2 movable scutes (UF 24845); 4 fixed scutes (UF 24846). 



Dasypus bellus (Simpson) 1930 



Material. — 1 fixed scute (V-4455). 



Family Mylodontidae 



cf. Glossotherium (Owen) 1840 



Material— Distal phalanx (V-4394). 



Remarks. — Poorly ossified epiphyses indicate that this claw is that 

 of a juvenile. The small size (greatest length = 51 mm) and roundness of 

 the claw suggest Glossotherium. Measurements taken midway between 

 proximal and distal ends are: mediolateral width 15 mm; dorsoventral 

 depth 22 mm. Claws of other ground sloth genera are more mediolater- 

 ally compressed than in Glossotherium. 



