New Species Branchiobdellid 29 



Hobbs, Horton H., Jr., P.C. Holt, and M. Walton. 1967. The crayfishes and their 

 epizootic ostracod and branchiobdellid associates of the Mountain Lake, 

 Virginia, region. Proc. U.S. Natl. Mus. 723:1-84. 



Holt, Perry C. 1949. A comparative study of the reproductive systems of Xironogiton 

 instabilius instabilius (Moore) and Cambanncola philadelphica (Leidy) (An- 

 nelida, Oligochaeta, Branchiobdellidae). J. Morphol. #4(3):535-572. 



1951. The genera Xironodnlus and Pterodnlus in North America with 



notes on other North American genera of the family Branchiobdellidae 

 (Annelida, Oligochaeta). Ph.D. dissert., Univ. Virginia. 



1960. The genus Ceratodnlus Hall (Branchiobdellidae, Oligochaeta), 



with the description of a new species. Va. J. Sci. (N.S.) 77(2):53-77. 



1965. On Ankyrodrilus , a new genus of branchiobdellid worms (An- 

 nelida). Va. J. Sci. (N.S.) 76(1)9-21. 



1969. The relationships of the branchiobdellid fauna of the southern 



Appalachians, pp. 191-219 in Holt, Perry C. (ed.). The distributional 



history of the biota of the southern Appalachians, Part I: Invertebrates. 



Res. Div. Monogr. 1, Va. Polytech. Inst., Blacksburg. 295 pp. 

 Moore, J. Percy. 1894. On some leechlike parasites of American crayfish. Proc. 



Acad. Nat. Sci. Phila. 759:419-429, pi. XII. 

 1 895. The anatomy of Bdellodnlus illuminatus, an American discodrilid. J. 



Morphol 7tf(2):497-540, pis. XXVIII-XXXII. 



Accepted 14 November 1798 



