Pholadidae


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Pholadidae

[fō′lad·ə‚dē]
(invertebrate zoology)
A family of bivalve mollusks in the subclass Eulamellibranchia; individuals may have one or more dorsal accessory plates, and the visceral mass is attached to the valves in the dorsal portion of the body.

Pholadidae

 

a family of bivalve mollusks. The shell, which measures as much as 10–12 cm in length, does not enclose the entire body. It lacks a hinge and ligament, its valves being joined only by muscles. The valves are often supplemented by plates. The anterior parts of the valves are covered with denticles that resemble the teeth of a file.

The family comprises approximately 30 genera, which are widely distributed in the world’s oceans. The seas of the USSR have approximately ten species, including Pholas dactylus in the Black Sea and Zirfaea crispata and Penitella penita in Far Eastern seas. Together with other marine organisms, the Pholadidae comprise the group of stone borers. They live in burrows, which they dig with the denticles of their shells in dense slime, marl, limestone, or coral. They occasionally bore into wood and may damage port structures.

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En el Caribe colombiano, Diaz-Merlano & Puyana-Hegedus (1994) registran 11 especies que pueden ser encontradas en madera, 5 de Pholadidae y 6 de Teredinidae.
El presente trabajo tiene por objeto contribuir a aumentar el conocimiento de los moluscos bivalvos perforadores de madera de las familias Teredinidae y Pholadidae en la costa Pacifica colombiana.
En este trabajo se registran l0 especies de Teredinidae y 2 de Pholadidae perforadoras de madera de varias localidades del Pacifico colombiano: Golfo de Cupica (GC), Bahia de Malaga (BM), Bahia de Buenaventura (BB), Guapi (GU), Mulatos (MU), Tumaco (TU), y la Isla Gorgona (IG) (Figura 1).
La identificacion se realizo al microscopio estereoscopico y al microscopio compuesto, utilizando las claves y guias taxonomicas de Teredinidae y Pholadidae de Turner (1954, 1966); Cruz, et al.
Lista taxonomica y descripcion de las especies de teredinidae y de pholadidae de zonas de manglares de la Costa Pacifica Colombiana
Los bivalvos de la familia Pholadidae son organismos perforadores, principalmente de rocas, pero con algunos representantes que perforan maderas.
La principal caracteristica del genero es que poseen una sola placa dorsal en la concha (Protoplax), mientras que los otros generos de la familia Pholadidae poseen mas de una.
Pholadidae and Teredinidae (Mollusca: Bivalvia) collected from mangrove habitats on the Burrup Peninsula, Western Australia, En: F.