n. [Gr. selene, moon; zone, girdle]
(MOLLUSCA: Gastropoda)
In dibranchiates, a spiral band of crescentric growth lines or threads (lunulae) on the shell surface due to the semicircular end of a notch or slit on the outer lip; a slit band; corresponds to the anal fasciole of some other groups.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • lunula — n.; pl. lunulae [L. dim. luna, moon] 1. A small lunate mark or crescent shaped object. 2. (MOLLUSCA: Gastropoda) A crescentic ridge on the selenizone, concave toward aperture …   Dictionary of invertebrate zoology

  • pseudoselenizone — n. [Gr. pseudos, false; selene, the moon; zone, girdle] (MOLLUSCA: Gastropoda) A band of crescentic growth lines on the shell surface resembling a selenizone, but not identifiable as caused by a notch or slit in the aperture …   Dictionary of invertebrate zoology

  • slit band — see selenizone …   Dictionary of invertebrate zoology

  • Bellerophon — Bellerophontic, adj. /beuh ler euh fon /, n. Class. Myth. a Corinthian hero who, mounted on Pegasus, killed the Chimera. Also, Bellerophontes /beuh ler euh fon teez/. * * * Legendary Greek hero. The son of Glaucus and grandson of Sisyphus, as a… …   Universalium

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