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Taxonomy And Distribution Of Western Atlantic Bittium (Gastropoda: Mesogastropoda), Ella May Thomson Wulff
Taxonomy And Distribution Of Western Atlantic Bittium (Gastropoda: Mesogastropoda), Ella May Thomson Wulff
Dissertations, Theses, and Masters Projects
The genus Bittium in the Western Atlantic was studied to determine the number and distribution of extant species. Shells of adults and juveniles collected from Brazil to Canada, including the type specimens of B. virginicum, were examined and compared on the basis of length, lengthwidth ratio and varix presence or absence. Although intergrades of B. alternatum and B. varium probably existed in the middle Chesapeake Bay, along the Atlantic shores of the Delmarva Peninsula and New Jersey, and in western Long Island Sound prior to 1940, B. alternatum is now found from Shark River, New Jersey, northward and B. varium …