Scaphopoda sentence example

scaphopoda
  • This is not always the case with Lamellibranchs; there is in the group a tendency for the corresponding edges of the mantle-skirt to fuse together by concrescence, and so to form a more or less completely closed bag, as in the Scaphopoda (Dentalium).
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  • An additional class was instituted for the reception of Dentalium and its few allies, and for this class Bronn's name Scaphopoda was used.
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  • The Lamellibranchia are no longer regarded as a distinct branch in contrast to the remaining Mollusca; according to Pelseneer they are allied to the Gastropoda and Scaphopoda, all three classes being derived from a common hypothetical ancestor, called Prorhipidoglossum.
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  • In the Scaphopoda there is no distinct genital duct, the relations are as in Aspidobranchia.
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  • The Scaphopoda are marine Molluscs with the body, especially the foot, adapted to a burrowing life in sand.
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  • In Polyplacophora there are eight on each side (8.I.8); in Scaphopoda two on each side (2.I.2); in almost all Cephalopoda three on each side (3.I.3); in Gastropoda the number varies very much in different subdivisions.
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