Cardinal teeth

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(Zool.) the central teeth of bivalve shell. See Bivalve.

See also: Cardinal

References in periodicals archive ?
tigerina are heterodont having cardinal teeth and lateral teeth either in front and/or behind beak, while A.
To compare whether the cardinal teeth differed between LIS and offshore shells, the lengths of the 2 branches were measured on 23 individuals: 10 from offshore and 13 from within LIS.
Left valve with two massive cardinal teeth, the posterior teeth very tall and pyramidal, crenulated and well separated from the anterior tooth by a gap that is also crenulated.