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Bivalve classification and taxonomy

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Relation http://eprints.cmfri.org.in/10413/
 
Title Bivalve classification and taxonomy
 
Creator Venkatesan, V
Mohamed, K S
 
Subject Bivalves
Taxonomy
 
Description Bivalve is the second most dominant class in the phylum
Mollusca. Bivalves are characterized by a laterally compressed
body with an external shell of two halves that is hinged
dorsally. The valves are united dorsally by elastic, a partially
calcified or chitinous external or internal ligament and are
held together by one or two adductor muscles. The head is
rudimentary and have lost the buccal or radular apparatus. The
mantle lobes are either connected or free ventrally. Most of the
sensory structures are located in the mantle margin. They are
mostly ciliary feeders, with sieving and sorting mechanisms
on labial palps and leaf-like ctenidium. The mantle cavity
includes a pair of ctenidia suspended laterally. The mouth and
anus are located at opposite ends of the body and the gut is
typically convoluted. The foot is compressed and adopted for
burrowing, except in sedentary forms where it is rudimentary.
Most bivalves are marine and there are no terrestrial forms.
 
Publisher CMFRI; Kochi
 
Date 2015
 
Type Teaching Resource
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/10413/1/08_V._Venkatesan3.pdf
Venkatesan, V and Mohamed, K S (2015) Bivalve classification and taxonomy. [Teaching Resource]