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Caractères morphologiques du revêtement cuticulaire du premier gésier d'Aplysia punctata Cuv. (mollusque opisthobranche) et homologie avec le bouclier gastrique des bivalves = Morphological characteristics of the cuticular plates of the first gizzard in Aplysia punctata Cuv. (Mollusca, Opisthobranchia) and homology with the gastric shield of Bivalvia
Arnould, Ch.; Jeuniaux, Ch. (1977). Caractères morphologiques du revêtement cuticulaire du premier gésier d'Aplysia punctata Cuv. (mollusque opisthobranche) et homologie avec le bouclier gastrique des bivalves = Morphological characteristics of the cuticular plates of the first gizzard in Aplysia punctata Cuv. (Mollusca, Opisthobranchia) and homology with the gastric shield of Bivalvia. Cah. Biol. Mar. 18(4): 465-473
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
Peer reviewed article  

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Keywords
    Aplysia punctata (Cuvier, 1803) [WoRMS]; Mollusca [WoRMS]; Opisthobranchia [WoRMS]; Marine

Authors  Top 
  • Arnould, Ch.
  • Jeuniaux, Ch.

Abstract
    The first gizzard of A. punctata is lined by a thin inert cuticle joining a sixty of voluminous teeth. These gizzard teeth are constituted of a non-sclerified chitinoproteic matrix perforated by a dense system of minute cytoplasmic filaments. On the basis of the rules of homology clearly stated by Remane and of the great similarity of chemical composition, the teeth of the gizzard of Opisthobranchia Anaspidea appear to be homologous with the gastric shield of Bivalvia and with the gastric cuticle of Protobranchia. These different cuticular formations contain active hydrolytic enzymes and certainly play a similar function in the digestive process.

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