Systematics of Troglobitic Caecidotea 



71 



Fig. 3. Tip elements of male second pleopod endopods: (a) Caecidotea bicren- 

 ata whitei, Carter Cave, Jackson Co., TN; (b) Caecidotea bicrenata whitei, Mill 

 Hole, Barren Co., KY; (c) Caecidotea bicrenata bicrenata, B&J Cave, Morgan 

 Co., AL; (d) Caecidotea bicrenata, Mystic River, Mammoth Cave, Edmonson 

 Co., KY; (e) Caecidotea bicrenata, Dunbar Cave, Montgomery Co., TN; (0 

 Caecidotea bicrenata, Columbia Caverns, Dickson Co., TN. 



