no. 3602 CRAYFISHES — HOBBS, HOLT, AND WALTON 45 



1959, p. 156); in the Mountain Lake region present in tributaries of 

 the James River in Craig County and in the North Fork of the 

 Roanoke River, Montgomery County, Va. 



Specimens examined. — 20 specimens in six collections from the 

 following stations: 23, 30, 31, 35, 88, and 90 on tributaries of the 

 James and Roanoke Rivers at elevations of 402 to 475 m. 



Hosts and associates. — This ostracod was associated with 

 Cambarus acuminatus and C. I. longulus at stations 30, 31, 35, 88; with 

 C. b. bartonii and C. I. longulus at 23; and with the three at 35 and 90. 



Ostracod associates include An. ancyla at station 88; Dn. ardis at 

 23, 30, 31, 35; Dn. ileata at 23, 31, 35; Dt.jalcata and Dn. truncata at 

 88, 90; and Dt. suteri at 30, 31, and 35. 



Branchiobdellid associates include A. koronaeus at stations 30, 88, 

 90; C. branchiophila at 88, 90; C. philadelphica at 35, 88, 90; Xd. 

 formosus at 88, 90; C. holostoma at 23; and C.jallax at 88. 



Entocythere hanawhaensis Hobbs and Walton 



Figure 11& 



Entocythere hanawhaensis Hobbs and Walton, 1966b, Proc. U.S. Nat. Mus., 

 vol. 119, no. 3542, p. 6, figs. ll-o. 



Diagnosis. — Posterior surface of junction between horizontal and 

 vertical rami of clasping apparatus subangular; internal border of 

 horizontal ramus, including apex, with nine teeth; mesial surface of 

 horizontal ramus without teeth or emarginations. 



Range. — Known only from the two localities cited below. 



Specimens examined. — 4 specimens in two collections from station 

 44, Cascades on Little Stony Creek, and from the New River at 

 Pembroke (sta. 126). Both stations are in the New River drainage 

 in Giles County, Va., and are at altitudes of 500 and 899 m, respec- 

 tively. 



Hosts and associates. — Within the crayfish collection from sta- 

 tion 44 were C. b. bartonii and C. sciotensis; only the latter was present 

 at 126. 



Entocytherid associates include P. phyma, Dn. ileata, and Dn. 

 scalis at station 44, and Dn. ileata at 126. 



Branchiobdellid associates include B. illuminatus, C. philadelphica, 

 and Xg. instabilius at station 44, and C. branchiophila, C. fallax, and 

 C. heterognatha at 126. 



Genus Phymocythere Hobbs and Hart, 1966 



Diagnosis. — Hobbs and Hart (1966, p. 48) stated: 



Terminal tooth of mandible with cusps. Copulatory complex with finger guard; 

 periferum extending ventrally much beyond clasping apparatus, elongate, com- 

 paratively slender, entirely corneous with terminal bulbous enlargement lacking 



