Notes on shell morphology and classification of the Siliquariidae (Gastropoda) : the protoconch and slit of Siliquaria squamata Blainville. American Museum novitates ; no. 2263

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dc.contributor.authorGould, Stephen Jay.en_US
dc.date.accessioned2005-10-06T17:37:42Z
dc.date.available2005-10-06T17:37:42Z
dc.date.issued1966en_US
dc.description13 p. : ill. ; 24 cm.en_US
dc.descriptionIncludes bibliographical references (p. 12-13).en_US
dc.description.abstract"Siliquaria, described for the first time, is 0.25 mm. wide, helically coiled, and has a sinuous aperture, whereas that of the other two siliquariid genera is 1 mm. wide and planispiral, with a circular aperture. Protoconch form can no longer be used as the chief diagnostic familial characteristic as proposed by Morton (1951). The siliquariid slit is analogous in form, but not in function, to the selenizone of slit-bearing archaeogastropods. Since the siliquariid slit is much longer than that of archaeogastropods, the morphology of slit healing differs. To prevent lateral filling of the slit by growth increments running longitudinally along the slit toward the slit-healing lamina, such increments are either not deposited or else run underneath, rather than in the same surface, as in their predecessors"--P. 11-12.en_US
dc.format.extent1676550 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/4427
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, N.Y. : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 2263en_US
dc.subject.lccQL1 .A436 no.2263 1966en_US
dc.subject.lcshSiliquaria squamata.en_US
dc.subject.lcshSiliquariidae.en_US
dc.subject.lcshGastropoda -- Bermuda Islands -- Saint David's Island.en_US
dc.subject.lcshMollusks -- Bermuda Islands -- Saint David's Island.en_US
dc.titleNotes on shell morphology and classification of the Siliquariidae (Gastropoda) : the protoconch and slit of Siliquaria squamata Blainville. American Museum novitates ; no. 2263en_US
dc.title.alternativeProtoconch and slit of Siliquaria squamata Blainvilleen_US
dc.typetexten_US

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