16 



CHESTER OSTRACODES OF ILLINOIS 



Species 





^ 

















OJ 





c 













^ 





OS 











3 



C 

 <u 

 pa 



U 

 c 



c 

 o 



Q 

 c 



re 



C 



c 



c 



<u 





'c5 



3 



OJ 



O 



> 



(U 



o 





CYTHERELLIDAE 



Cavellina bransoni (Morey) 



X 



X 

 X 



X 



X 

 X 



cf. 



X 



X 



X 

 X 



X 

 X 

 X 



X 



X 



X 



X 



X 

 X 



X 



X 

 X 



X 



X 



X 

 X 



X 

 X 

 X 



X 



X 



X 

 X 



cf. 



X 

 X 



X 

 X 



X 

 X 



X 



X 



cf. 



X 

 X 



X 



X 

 X 

 X 



X 



X 

 X 



X 



X 

 X 

 X 



X 

 X 



X 



X 

 X 



X 

 X 



X 

 X 



X 



X 

 X 



X 

 X 



X 



X 

 X 



X 

 X 

 X 

 X 



X 



7 











Cavellina dispar Cooper. 









6 



Cavellina geisi (Croneis and Gale) 





Cavellina glandella (Whitfield) 



2 



Cavellina hoeniri Coryell and Johnson 





Cavellina ithunnae Coryell and Johnson 













Cavellina longula Cooper 







Cavellina ovatiformis (Ulrich) 



3 



Cavellina parallela Croneis and Gutke 





Cavellina parva Cooper . . 



6 



Cavellina perplexa Croneis and Funkhouser 



Cavellina spatulata Croneis and Gutke 



Paracavellina elliptica Cooper 



Paracavellina opima Cooper 



4,6 



Paracavellina ovata Cooper 





Paracavellina pinguis Cooper .... 







Paracavellina tumida Cooper 





Platychilus ovoides Cooper .... 



— 



Sargentina allani Coryell and Johnson 



Sargentina asulcata Cooper 



— 



Sargentina crassimarginata (Croneis and Thurman) . . 

 Sulcella celsa Cooper 



— 



Sulcella nodocosta Cooper . 





Sulcella ovata Cooper 





DREPANELLIDAE 



Cornigella golcondensis (Croneis and Gale) . . 





Golcondella sulcata Croneis and Gale 





GLYPTOPLEURIDAE 



Glyptopleura adunca Croneis and Thurman • 



Glyptopleura alata Croneis and Funkhouser 



Glyptopleura alternata Croneis and Funkhouser. . . . • 



Glyptopleura alvea Cooper 



Gluptopleura angulata Girtv 



4 



Glyptopleura bristoli Croneis and Gutke 





Glyptopleura carrolli Croneis and Bristol 







Glyptopleura circumcostata Cooper 



■ 



Glyptopleura complexa Croneis and Funkhouser 



Glyptopleura compta Croneis and Thurman 



Glyptopleura conflexacostata Croneis and Gale 



Glyptopleura.^ curvata Croneis and Gale .... 



— 



Glyptopleura decacostata Croneis and Gale 







Glyptopleura elliptica Croneis and Gutke 







Glyptopleura elongata Cooper " 



Glyptopleura friggae Coryell and Johnson . . 



— 



Glyptopleura gibba Croneis and Gale 







Glyptopleura harltoni Croneis and Bristol . . 







Glyptopleura henbesti Croneis and Gutke . . . 











