44 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



matic loop; clasping apparatus with junction of horizontal and vertical 

 rami rounded but extensions forming angle of less than 90°, with no 

 thickening at junction, and internal border of horizontal ramus 

 without proximal tooth but with series of five distal serrations. 

 Female with J-shaped rod and amiculum. 



Range. — Previously recorded from the drainage systems of the 

 Wateree and Congaree Rivers in Richland County, S.C. (Crawford, 

 1959, p. 166); in the Mountain Lake region in tributaries of the 

 James River in Craig County, Va. 



Specimens examined. — 30 specimens in six collections from the 

 following stations: 27, 30, 31, 33, 35, and 124 in Craig and Johns 

 Creeks, at elevations of 402 to 482 m. 



Hosts and associates. — In all stations it was associated with 

 Cambarus I. longulus and C. acuminatus except at 124; and in 35 and 

 124 with C. b. bartonii. 



Entocytherid associates include Dn. ileata, Dn. ardis, and E. 

 internotalus at stations 31, 35; Dn. ardis and E. internotalus at 30; 

 Dn. ardis and Dn. ileata at 33, 124; and Dn. ardis at 27. 



Branchiobdellid associates include C. philadelphica at stations 27, 

 33, 35, 124; and A. koronaeus at 30. 



Genus Entocythere Marshall, 1903 



Diagnosis. — Copula tory complex without finger guard; clasping 

 apparatus extending ventrally beyond peniferum; extensions of two 

 rami of clasping apparatus seldom (only in E. dorsorotunda Hoff, 1944) 

 forming angle greater than 90°; external border of clasping apparatus 

 entire and internal border serrate along entire length, tip terminating 

 in three to five denticles; peniferum variable but usually irregularly 

 rounded ventrally, and lacking accessory groove. Females without 

 J-shaped rod, amiculum, or other comparable structure; second 

 antenna with pectinate claw (fig. 7b). 



Entocythere internotalus Crawford 



Figures 7b, 11a 

 Entocythere internotalus Crawford, 1959, p. 152, pi. 1. 



Diagnosis. — Posterior surface of junction between horizontal and 

 vertical rami of clasping apparatus rounded; internal border of 

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

 proximal portion of horizontal ramus with one or two toothlike 

 prominences. 



Range. — Previously reported from many localities in the Congaree, 

 Wateree, and Broad Rivers in Richland County, S.C. (Crawford, 



