Systematics of Troglobitic Caecidotea 67 



Cave, 1.2 mi. N Rockvale, 22 Oct 1956, T.C. Barr, 1<$, 799; Rainbow 

 Cave, 2.3 mi. SW Walter Hill, 1 June 1941, L. Hubricht, 2$$, 599. 

 White Co., Haskell Cave, 2 mi. E Doyle, 24 Dec 1956, L. Hubricht, \$\ 

 Indian Cave, 2.5 mi. SE Quebec, 23 Dec 1956, L. Hubricht, 4<$#, 19; 

 Moore Cave, 28 Oct 1969, J. Holsinger, R. Baroody, %$$, 1199. Wil- 

 son Co., Hayes Cave, 1 mi. SE Statesville, 8 Aug 1967, S. Peck, A. 

 Fiske, 2$$, 2099; Jackson Cave, Cedars of Lebanon State Park, 22 

 Sep 1967, S. Peck, A. Fiske, 2$$ y 699. 



Diagnosis of male. — Antenna 1 esthete series uninterrupted, 

 esthete formula from 3-0-0 to 5-0-0. Pereopod 1, palm of propodus with 

 proximal spines, bicuspate, usually low, mesial and distal processes. 

 Pleopod 1, protopod with 3 retinacula, exopod broadly rounded dis- 

 tally, slightly concave laterally, setae along distal and lateral margins, 

 most elongate laterally. Pleopod 2 endopod tip consisting of 2 pro- 

 cesses, cannula beak-shaped, extending perpendicular to axis of endo- 

 pod, lateral process subterminal parallel to cannula, originating within 

 margin of endopod, recurved. Pleopod exopod 4 with single sigmoid 

 suture. 



Caecidotea b. bicrenata may be distinguished from C. b. whitei by 

 the position of the lateral process of the male second pleopod endopod 

 tip. In the former subspecies, the lateral process is placed within the 

 margin of the endopod and is recurved, often strongly, while in the 

 latter subspecies the lateral process is found on the margin of the 

 endopod and is straight. In mature specimens, the bicuspate processes 

 of the propod are usually lower in C. b. bicrenata than in C. b. whitei. 



Range. — Caves, from northern Alabama to northcentral Ten- 

 nessee, approximately to the Cumberland River but not reaching the 

 southern extension of the Pennyroyal plateau (Fig. 1). 



Caecidotea bicrenata whitei, new combination 

 Asellus alabamensis. — Fleming, 1972a: 247-248 (in part) 

 Asellus antricolus. — Fleming, 1972a: 245 (Twin Level Cave) 

 Caecidotea sp. no. 1. — Peck and Lewis, 1978: 44. 

 Caecidotea sp. no. 2. — Peck and Lewis, 1978: 44. 

 Caecidotea sp. — Lewis and Lewis, 1980: 23-27. — Lewis, 1981a: 21; 



1981b: 234-236. 

 Caecidotea meisterae Lewis and Bowman, 1981: 28-32. 

 Caecidotea whitei Lewis and Bowman, 1981: 51-59. 



Material examined. — TENNESSEE: Davidson Co., Crocker 

 Springs Cave, 12 Nov 1956, C.K. Barr, 3<3<J, 499; Nashville, 3 Mar 

 1901, E.B. Williamson, 6$$, 699. Sumner Co., Escue Cave, 2 mi. NE 

 Portland, 18 Apr 1958, L. Hubricht, 10<5<3, 1799. KENTUCKY: Edmon- 

 son Co. , Mammoth Cave National Park, Cedar Sink Cave, 5 mi. SW 

 Mammoth Cave, 31 Aug 1939, L. Hubricht, 7>$$. Cave over Styx River 

 Spring, 26 June 1981, J. Lewis, T. Lewis, 4<5<$, 19 . Mammoth Cave: 

 Flint Dome in Jessup Avenue, 6 Sep 1981, J. Lewis, J. Eckstein, 45$, 

 999; Styx River, near Natural Bridge, 28 June 1980, J. Lewis, T. Lewis, 



