MARYLAND GEOLOGICAL SURVEY 



145 



GEOGRAPHICAL DISTRIBUTION OF SPECIES. 



SPECIES. 



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Turbonilla (Pyrgiscus) interrupta (Totten) 





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Barnea (Scobina) costata (Linne) 





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Tellina (Angulus) tenera Say 



























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Polystomella striatopiinctata (Pichtel & Moll) . 









1 





11 Occurs also at New Bedford, Mass. (Dall). 



12 Occurs also at Cape May and Atlantic City, N. J. (Dall). 



10 



