TERMIUM Plus®

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PNEUMOSTOME [1 record]

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Record 1 1977-07-02

English

Subject field(s)
  • Paleontology
OBS

[A pneumostome is] a narrow aperture (...) [by which] air is admitted (...) [in pulmonate gastropods.]

French

Domaine(s)
  • Paléontologie
OBS

La cavité palléale des Gastéropodes se transforme en poumon par le développement d'un réseau vasculaire dans son plafond, et par rétrécissement de ses communications avec l'extérieur, rétrécissement qui atténue les possibilités de dessiccation des parois. L'orifice devient le "pneumostome", ouvert sur le côté du corps.

Spanish

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