FISHERY BULLETIN: VOL. 71, NO. I 



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_ I ISLAND ^,, ' 



MARTHA'S VIMt'l 



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MITRELLA ZONALIS 



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MARTHA'S VINE'ARO 



MITRELLA SP 



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tpoo wcTEns 



NASSARIU5 TRIVITTATUS 



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- MARTHA'S VINETARD 





, 1,000 METERS 



ODOSTOMIA CANALICULATA 



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„- MARTHA'S VINEYARD 



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ipOO METERS 



TURBONILLA INTERUPTA 



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. ' MARTHA'S VtNEVARQ 



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TURBONILLA SP 



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MARTHA'S VINETARD 



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GASTROPODA LARVA 



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 MARTHA'S VINEYARD 







GASTROPODA SPR 



Figure 13. — Geographic distribution of the common gastropods. — Continued. 



22 



