Proceedings of 

 the United States 

 National Museum ^^<ii:{5^ 



SMITHSONIAN INSTITUTION • WASHINGTON, D.C. 



Volume 119 1966 Number 3542 



A NEW GENUS AND SIX NEW SPECIES 

 OF ENTOCYTHERID OSTRACODS 

 (OSTRACODA, ENTOCYTHERID AE) 



By HoRTON H. HoBBS, Jr., and Margaret Walton ^ 



The conservatism that marked the supraspecific treatment of this 

 group of epizootic ostracods for 58 years was broken v^ith the estab- 

 lishment of the family Entocytheridae by Howe (1961) and the ap- 

 pearance of a familial revision in the following year by Hart (1962). 

 Even with the elevation of Hoff's (1942) subfamily Entocytherinae 

 in 1961, only two genera were recognized. In his generic revision, 

 however. Hart proposed the recognition of two subfamilies containing 

 11 genera. We have followed his recommendations and are adding 

 an additional genus to the subfamily Entocytherinae. 



At the time of the preparation of this manuscript, descriptions of 

 at least three more genera of entocytherids are in press. Therefore, 

 it seems somewhat futile to offer a key for the separation of established 

 genera that wUl be obsolete prior to its publication; furthermore, 

 there are undescribed species available to those currently studying 

 these animals which will require the erection of additional genera. 



The assemblage of species described here was collected from various 

 areas in the United States, and all of them were associated with cray- 

 fishes. The ostracod genera represented are Dactylocythere, Don- 



1 Hobbs: Department of Zoology, Smithsonian Institution; Walton: 1116 Rich- 

 mond Blvd., Danville, Va. 



1 

 219-940—66 



