632 THE PALEONTOLOGY OF MINNESOTA. 
[Classification of Ostracoda. 
PROVISIONAL CLASSIFICATION OF THE PALEOZOIC OSTRACODA. 
Family LEPERDITIID ©. 
GENERA: Leperditia, Ronault; Leperditella, Ulrich; Isochilina, Jones; Aparchites, Jones; Schmidtella, Ulrich; 
?_ Bchmina, Jones. 
Family BEYRICHIIDA. 
GENERA: Beyrichia, McCoy; Beyrichiella, Jones and Kirkby; Beyrichiopsis, Jones and Kirkby; K ledenia, 
Jones and Holl; Ulrichia, Jones; Primitia, Jones and Holl; Primitiopsis, Jones; Hurychilina, 
Ulrich; Dicranella, Ulrich; Halliella, Ulrich; Jonesella, Ulrich; Gollia, Jones and Holl; Cteno- 
bolbina, Ulrich; Tetradella, Ulrich; Drepanella, Ulrich: Placentula, Jones and Holl; Kirkbya, 
Jones; Moorea, Jones and Kirkby; Strepula, Jones and Holl; Macronotella, Ulrich; Primitiella, 
Ulrich; Dilobella, Ulrich, 
Family BARYCHILINIDA. 
GENERA: Barychilina, Ulrich; Kuammodes, Jones. 
Family ENTOMIDA. 
GENERA: Enlomis, Jones; Hlpe, Barrande; Entomidella, Jones; ? Hippa, Barrande. 
Family CYPRIDINID As. 
GENERA: Cypridina, Milne-Edwards; Cypridinella, Jones; Cypridellina, Jones; Sulcuna, Jones; Cypridella, 
DeKoninck; Cyprella, DeK.; Bradycinetus, Sars; Philomedes, Lilljeborg; Rhombina, J.; 
Cyprosis aud Cyprosina, Jones. 
Family ENTOMOCONCHID As. 
GENERA: Entomoconchus, McCoy; Offa, Jones. 
Family POLYCOPID i. 
GENus: Polycope, Sars. 
Family CYTHERELLID AS. 
Genus: Cytherella, Jones aud Bosquet. 
Family CYTHERIDA). 
GENERA: Cylhere, Miller; Bythocythere, Sars; Carbonia, Jones; ? Youngia, Jones and Kirkby; -Xestoleberis, 
Sars. 
Family THLIPSURID Ai. 
GENERA: Thlipswra, Jones and Holl; Phreatura, Jones and Kirkby; Octonaria, Jones. 
Family CYPRID. 
GENERA: Aglaia, Brady; Candona, Baird; Argillecia, Sars; Macrocypris, Brady; Bythocypris Brady; Bairdia, 
McCoy; Pontocypris, Sars; Pachydomella, Ulrich. 
Family BEECHERELLID As. 
GENERA: JBeecherella, Ulrich; Krausella, Ulrich. 
Family DARWINULID AM. 
GENUS: Darwinula, Jones (Brady and Robertson), 
NOT CLASSIFIED. 
Cytherellina, Jones and Holl; Bursulella and Bernix, Jones; Lepiditta, Lepidilla, Beyrichona 
and Hipponichurion, Mathews; Isozys, Walcott. 
iad f+ 
