PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued l^^rsjA, \J?^i hv th 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 86 Washington: 1939 No. 3057 



A NEW CAVE ISOPOD FEOM FLORIDA 



By James O. Malonet 



From Horton H. Hobbs, of the University of Florida, the United 

 Statt'S National Museum has received a large number of blind isopods 

 from two localities : About 100 sj^ecimens from Dudley Cave, Gaines- 

 ville, Alachua County. Fla., and 4 very small specimens from cray- 

 fish burrows at Blountstovrn, Calhoun County. Fla. They are all 

 representatives of an undescribed species, which I take pleasure in 

 naming for the collector. 



Family ASELLIDAE 



Genus ASELLUS Geoflfroy Saint-Hilaire, 1764 



As here considered, AseUiis includes Caecidotea Packard, 1871. 

 This is in accord with the consensus of opinion among most students 

 of the fresh- water Isopoda. 



ASELLUS HOBBSI, new species 



Figure 52 



Holotype. — A male specimen from Dudley Cave, Gainesville, Ala- 

 chua County. Fla., measuring 9i/^ mm in length and 134 mm in 

 width, has been selected as the holotype, U.S.N.M. no. 76434. 



Description of holotype. — The body without antennae and uropods 

 measures 9yo mm in length, 1% mm in width. Head deeply exca- 

 vate, a little narrower than first thoracic segment, 1 mm long by 

 11/2 mm wide. The thoracic segments are almost parallel ; the first, 



457 

 116510—39 



