OP CONCHOLOGY. 215 



Reference to the Plates Illustrating Mr. Conrad's 



Papers. 



Plate 20. 



Fig, 1. Strepsidura lintea, C. — P. 210. 

 " 2. Obeliscus perexilis, C. — P. 211. 

 " 3. Volutilithes impressa, C, — P. 211. 

 " 4. MuREX Vanuxemi, C. — P. 210. 



" 5. CORBULA FILOSA, C— P. 212. 



" 6. Chiton Eocenensis, C. — P. 212. 

 " 7. " ANTiQUUs, C— p. 212. 

 " 8. TORTIPLICA ellapsa, C. — P. 212. 

 " 9. Surcula annosa, C— p. 213. 

 " 10. MuREX engonatus, C. — p. 210. 

 " 11. " Mantelli, C— p. 210. 



" 12. CiRSOSTREMA ClAIBORNENSIS, C. — P. 211. 

 " 13. ToRNATELL^A LATA, C— P. 212. 



" 14. Cyclas curta, C— p. 212. 



" 15. Dentalium densatum, C. — P. 212. 



" 16. AvicuLA annosa, C— p. 214. 



" 17. LiEVIBUOCINUM PRORSUM, C. — P. 211. 



Plate 21. 



Fig. 1. Strepsidura laqueata, C. — P. 210. 

 " 2. YOLDIA protexta, C. — P. 213. 

 " 3. Acteonema prisca, C. — P. 213. 

 " 4. ToRTOLivA Texana. C— P. 211. 



" 5. GOULDIA PYGMiEA, C. — P. 212. 

 " 6. CoCHLESPIRA BELLA, C. — P. 210, 



" 7. Pleurotomaria perlata, C. — P. 213, 



" 8. CaNCELLARIA TORTIPLICA, C. — P. 211, 

 " 9. BUCCITRITON ALTUM, C. — P. 211. 



" 10. Volutilithes indenta, C. — P. 211. 

 " 11. Lunatia Marylandica, C. — P. 211, 

 " 12. Cochlespira engonata, C. — P. 210. 



