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The ultrastructure of the statocysts in the pediveliger larvae of Pecten maximus (L.) (Bivalvia)

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The pediveliger of Pecten maximus (L.) has a pair of statocysts situated at the base of the foot on either side of a bilobed pedal ganglion. The statocysts consist of a spherical sac connected to the mantle cavity by a cylindrical ciliated canal. Within the sac there are statoconia which are variable both in shape and structure. The cells of the sac are joined by septate desmosomes. There is a non-ciliated cell in each sac containing a variety of granules some of which resemble certain of the statoconia. The remainder of the sac is composed of hair cells, which bear a circular array of radiating cilia. The basal bodies and horizontal striated roots of these cilia are directed radially. The hair cells give rise to thin processes which probably join together to form the static nerve. This nerve runs from the static canal to the pleural ganglion.

Original languageEnglish
Pages (from-to)23-36
Number of pages14
JournalJournal of Experimental Marine Biology and Ecology
Volume27
Issue number1
DOIs
Publication statusPublished - 1 Jan 1977

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