Bainbridge, Ga., and of Alum Bluff, Fla. 



251 



A provisional list of the Gasteropod 

 Gully species with a comparative 

 study of their distribution south- 

 ward, as well as their history 

 in Chattahooche and Chesapeake 

 times. 



o o 



-^ 



1 S 

 o 



Ostrea divaricata, Lea, 1 _ 



Pecten Madisonianus, Say, 2 



Area idonea, Conrad 



Area. 3 _ 



Cardita [Carditamera] protracta, 

 Conrad, 4 



Venus, var. of mercenaria, small, 5. 



Strigilla flexuosa, Say 



Mactra subcuneata. Conrad _. 



Solen ensis, Linne. 6 



Conus planiceps, Heilprin, 7 



Drillia lunata, Lea, 8 



Drillia, 3 species 



Marginella. 9 



Melongena, cf. subcoronata, Heil- 

 prin. 10 



Fulgur [Fulgur], 11 



Fulgur, cf. spimger, var. nodulatum, 



Conrad, 12. 



Latirus. 13 



Nassa, 14 



Typhis acuticostata, Conrad, 15 



Tvphis gracilis, Conrad, 16 



Scala [Apalia], 17 



Turritella gatunensis, Conrad, 18 ._ 

 Turritella, cf. acropora, Dall, 19 ... 

 Turritella. cf. terebriformis (Conrad), 



Dall, 20 



Solarium, cf. bellastriatum, var. 



Yicksbur°:ense, Dall, 21 



Crucibulum auricula, var. imbrica- 



tum. Sowerby, 22 



Caliptrsea centralis, Conrad 



Crepidula fornicata. Lamarck. 23 .'_ 

 Xatica [Cryptouatica] floridana, Dall 

 Chlorostoma [Omphalius] exoletum. 



Conrad, 24 



Fissuridea. cf. Griscomi. Conrad, 25 



Helix, cf. adamnis, Dall. 26 



Bulimulus ? 27... 



Balanus 



Chipola 





formation. 









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 5 





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Horizons of 

 Types. 



Chesapeake. 



Chesapeake. 



Chesapeake. 



Chesapeake. 



Chipola. 



Chesapeake. 



j Chipola, 

 ( Chesapeake. 



Pleiocene. 



Chesapeake. 

 Claiborne. 



Miocene. 

 Recent. 



Claiborne. 



Chesapeake. 



Older Maryland. 

 Chesapeake. j 2 



* Miocene. 

 Vicksburg. 



Chesapeake. 

 a 



Chipola. 



Chesapeake. 

 Older Maryland. 

 Chipola. 



List of publications: I. Lea. Isaac, Contributions to Geology. 2. Conrad, 

 T. A., Fossils of the Tertiary Formations. 3. Tuomey and Holmes, Pleiocene 

 Fossils of South Carolina. 4. Dall, W. EL, Contributions to the Tertiary Fauna 

 of Florida. 4. Heilprin, Angelo, Explorations on the West Coast of Florida. 

 6. Whitfield, R. P., Gasteropods of New Jersey, Monograph, U. S. G. S., 18. 



