sutural laminae

sutural laminae
(MOLLUSCA: Polyplacophora)
Apophyses plates; anterior plate-like projections of the articulamentum extending from either side of an intermediate or tail valve; may be separated by a sinus or partially joined by a laminar extension of the articulamentum.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • sutural plate — (MOLLUSCA: Polyplacophora) Lamina of the articulamentum across the jugal sinus of the intermediate and tail valve, extending between the sutural laminae …   Dictionary of invertebrate zoology

  • apophysis — n.; pl. ses [Gr. apo, away; phyein, to grow] 1. An internal or external tubercular or elongate process of the body wall; a prominence, swelling or expansion; see apodeme, apodome. 2. (ARTHROPODA: Insecta) see pleural apophysis, sternal apophyses …   Dictionary of invertebrate zoology

  • articulamentum — n. [L. articulare, to divide] (MOLLUSCA: Polyplacophora) The shell layer between the tegmentum and hypostracum, that is composed of several separate components of crystalline shell structure; formerly the hard, semiporcellaneous shell layer… …   Dictionary of invertebrate zoology

  • beak — n. [OF. bec, beak] 1. Anything projecting and ending in a point. 2. (ARTHROPODA) a. In Chelicerata, the gnathosome of acarines. b. In Crustacea, the anteroventral projection of the free margin of the carapace; not equivalent to rostrum. c. In… …   Dictionary of invertebrate zoology

  • eaves — n. pl. [A.S. efes, lower border of a roof] (MOLLUSCA: Polyplacophora) Portions of the tegmentum just over the line where the insertion plates and the sutural laminae project …   Dictionary of invertebrate zoology

  • jugal sinus — (MOLLUSCA: Polyplacophora) A depression between the sutural laminae of chitins …   Dictionary of invertebrate zoology

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