. East coast marine shells; descriptions of shore mollusks together with many living below tide mark, from Maine to Texas inclusive, especially Florida . Fig. 9 Plaits on columella The Nucleus is that portion of the shell which emerged from the egg or ovum. It may consist of one or several whorls and usually can be recognized on account of

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmollusks