Scaphopoda


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Scaphopoda: class Scaphopoda

Scaphopoda

[skə′fäp·əd·ə]
(invertebrate zoology)
A class of the phylum Mollusca in which the soft body fits the external, curved and tapering, nonchambered, aragonitic shell which is open at both ends.
References in periodicals archive ?
Catalog of species-group names of Recent and fossil Scaphopoda (Mollusca).
A major enigma regarding the comparative structure of the apical sensory organ among gastropod larvae relates to the distinctive long ciliary tuft that is a characteristic component of this larval structure in many other spiralians, including at least some members of the molluscan classes: Scaphopoda, Polyplacophora, Aplacophora, and Bivalvia (see reviews by Raven, 1966; Verdonk and van den Biggelaar, 1983).
The Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, and Scaphopoda are exclusively benthic and opaque.
The molecular aspects of trochoblast-specific gene expression in molluscs have been conserved in the Polyplacophora, Scaphopoda, and Gastropoda.
The Solenogastres (= Neomeniomorpha), Caudofoveata (= Chaetodermomorpha), and Polyplacophora were grouped in the subphylum Aculifera, and the Monoplacophora, Bivalvia, Gastropoda, Scaphopoda, and Cephalopoda were placed in the subphylum Conchifera.