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PHOLADIDAE [2 records]

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Filter results by subject field

Alphabetical list of terms

Record 1 2021-05-06

English

Subject field(s)
  • Mollusks, Echinoderms and Prochordates
Universal entry(ies)
Pholadidae
Latin
OBS

Mollusks of the family Pholadidae.

French

Domaine(s)
  • Mollusques, échinodermes et procordés
Entrée(s) universelle(s)
Pholadidae
Latin
OBS

Les pholades (Pholadidae) sont des mollusques bivalves marins dits térébrants. Ils utilisent leur coquille asymétrique pour s'enfoncer dans le sédiment, forer du bois immergé, ou creuser des loges dans des pierres calcaires, parfois assez dures.

Spanish

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Record 2 1977-07-08

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the family Pholadidae have] shells elongate to globular, with [a] slitlike to nearly circular pedal gape which may or may not be closed by [a] collum in [the] adult; [the] anterior portion of [the] valves ... [have] imbricate or denticulate concentric ridges and [are] commonly ribbed radially; [an] umbonal-ventral sulcus may separate [the] anterior slope from [the] disc; [the] posterior slope [is] not generally demarked, ...; accessory plates [are] present in all forms but ... [vary] in number. Dorsal and ventral condyles and [an] internal umbonal-ventral rib (reflection of the umbonal-ventral sulcus of outer surface of valve) [are] present or absent; [the] pallial sinus [is] usually deep. Siphons [are] variable, usually united, capable of considerable extension, smooth or papillose, and commonly enclosed in [the] periostracal sheath, [and] may or may not be completely retracted within [the] valves when [the] animal contracts; [the] foot [is] well developed, usually truncate and adapted for suction, atrophying in adults of callum-producing forms. ... "? Carb., Jur. - Rec".

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la famille des Pholadidae ont une) coquille équivalve, inéquilatérale, bâillante; [une] charnière sans dents; [un] bord cardinal retourné sur les crochets qui sont en outre recouverts par des plaques accessoires; [ils n'ont pas de] ligament externe mais un ligament interne; une apophyse, dite apophyse styloïde, part du crochet et se termine librement à l'intérieur de la coquille, elle sert d'insertion au rétracteur du pied; [ils ont un] sinus palléal.

Spanish

Save record 2

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