Pseudotremia manni, Lewis, Julian J., 2005

Lewis, Julian J., 2005, Cumberland Plateau (Diplopoda: Chordeumatida: Cleidogonidae), Zootaxa 1080, pp. 17-31 : 25

Pseudotremia manni new species

Figs. 12–15

Material examined: Tennessee: Overton Co., Baileys Webb Cave, dissected 25mm holotype male, 2 paratype males, 2 paratype females, 3 juveniles, S. Lewis, H. Garland, 28 September 2003; Webb Cave, 9 depauperate juveniles, J. Lewis, N. Mann, 28 September 2003; same locality, 2 juveniles, J. Lewis, N. Mann, C. Holliday, 12 August 2004.

Diagnosis: Within the Spira Group of Shear (1972), P. manni most closely resembles P. m e ro p s Shear (Adair Co., Kentucky) and P. s p i r a Shear (Pulaski Co., Kentucky) in the erect, simple median angiocoxites and the undivided lateral angiocoxites. P. manni is separable from these species by its possession of a spine on the median angiocoxite and by the simple, keeled syncolpocoxite process.

Description of male: Longest approximately 25mm (coiled), width increasing from about 1.2mm (collum) to 2.5mm (segment 7); body light brown, metaterga with scattered, slightly elongate tubercles, dorsal midline stripe light brown, faint purple infusion in pregonopodal segments, darkest on head and antennae; sterna and legs pale brown. Eyes with 17–18 clear, unpigmented, ocelli of irregular sizes within subtriangular, purple ocellaria. Antennae about 4.4mm long, slender, 3rd segment about 1.1mm long. Segmental paranota moderate, largest anterior to about mid­body, becoming indistinct from lateral striae about segment 23. Lateral striae about 11–13.

Gonopods with syncolpocoxites mitten­shaped, proximally fused, distally separated by shallow U­shaped cleft, process modified class II ( Shear 1972, p. 167), forming keel from bases of syncolpocoxites, projecting anteriad, slightly broadened distally in anterior view. Median angiocoxite erect, simple, with single small spine midlength. Lateral angiocoxite separated from median by relatively shallow cleft, slender, sigmoidally curved, entire. Leg 9 with distal 2 segments apparently fused, single claw present.

Female: Approximately 27 mm (coiled), non­sexual characters similar to male. Cyphopod valves elongate, mesal valve about 1.1X length lateral valve.

Etymology: This species is named in honor of Nathaniel Mann, in appreciation of his assistance during the field work for this project, as well as his dedication to the conservation of Tennessee caves and their fauna.

Vernacular name: Mann’s cave milliped.

Habitat and Range: Pseudotremia manni was taken from riparian mud banks in both localities. This species is known only from Baileys Webb Cave and presumably Webb Cave. The entrances of these caves are little more than 100 meters apart. Although no adults were taken from Webb Cave, the similarity in appearance of the millipeds from this site to that of the type specimens, as well as the proximity of the two sites, suggests that they are the same species.

Figures

FIGURES 9 – 15. Pseudotremia hollidayi, n. sp., Keyhole Cave, Sequatchie Co., Tennessee: (9) anterior gonopods, anterior aspect, (10) anterior gonopods, lateral aspect, (11) leg 9. Pseudotremia manni, n. sp., Baileys Webb Cave, Overton Co., Tennessee: (12) anterior gonopods, anterior aspect, (13) anterior gonopods, lateral aspect, (14) leg 9, (15) cyphopod.