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PLAQUE AMBULACRAIRE [1 record]

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Record 1 2019-02-18

English

Subject field(s)
  • Mollusks, Echinoderms and Prochordates
CONT

The test (endoskeleton) is composed of calcareous plates (ossicles) symmetrically arranged and interlocked or fused so as to be immovable. The plates are typically arranged into 5 double rows of ambulacral plates alternating with double rows of interambulacral plates.

French

Domaine(s)
  • Mollusques, échinodermes et procordés
CONT

Les zones ambulacraires se reconnaissent aisément à la présence de pores sur les plaques (pour le passage des podias); les plaques ambulacraires peuvent être simples avec une seule paire de pores, ou complexes [...] avec au moins 3 paires de pores. Toutes les plaques ambulacraires ou interambulacraires sont couvertes de tubercules de taille variée sur lesquels s'articulent piquants et pédicellaires [...]

Spanish

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