An Illustrated and Cross-Referenced Glossary of
Malacological and Conchological Terms

by Paul S. Mikkelsen

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Term Definition

CARDINAL PIT   [need definition]

CAUDAL PIT   A conspicuous depression in the posterior dorsum of the foot of some snails which contains mucous glands.

LIGAMENT PIT   Relatively broad depression in cardinal area for attachment of ligament in bivalves; see also: CHONDROPHORE; COCHLEATE.

PEDAL PIT   In APLACOPHORANS, an anterior depression which marks the begining of a PEDAL GROOVE.

PIT   A small cavity or hole; a pinpoint depression; see also: PUNCTATE; PUNCTUM; QUINCUNX.

RESILIAL PIT   One of a series of small pits in line below the RESILIUM. These occur in three genera: Mytilus, Mytella and Perna.

UMBILICAL PIT   An opening or depression in the UMBILICUS.

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