Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Relating to the cerebral cortex.
  • adjective Relating to the mantle of a mollusk or brachiopod.

from The Century Dictionary.

  • Of or pertaining to a mantle or pallium.
  • Specifically, in conchology, pertaining to the pallium or mantle of a mollusk.
  • Relating to the pallium or cerebral cortex.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Zoöl.) Of or pertaining to a mantle, especially to the mantle of mollusks; produced by the mantle. See Illust. of bivalve.
  • adjective (Zoöl.) the cavity inclosed by the mantle.
  • adjective (Zoöl.) an inward bending of the pallial line, near the posterior end of certain bivalve shells, to receive the siphon. See Illust. of Bivalve.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of, pertaining to, or produced by a mantle, especially to the mantle of mollusks.
  • adjective Of, or relating to, the pallium

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[pallium + –al.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Latin pallium ("a mantle").

Examples

  • Compare the photo with this drawing of the pallial cavity of Arion distinctus (from G.M. Barker, Naturalised terrestrial Stylommatophora [of New Zealand], 1999).

    Archive 2009-01-01

  • Compare the photo with this drawing of the pallial cavity of Arion distinctus from G.

    More secrets of slugs hidden under their mantles

  • To see a crawling snail's pallial eye, you need to look at the snail from slightly below.

    Archive 2007-04-01

  • The pallial eye of Cerithidea scalariformis arrow.

    Archive 2007-04-01

  • The pallial eye is easy to notice when the snail lifts its operculum up and starts to come out of its shell with the aperture facing up.

    Cerithidea

  • To see a crawling snail's pallial eye, you need to look at the snail from slightly below.

    Cerithidea

  • A day later, I was even more fascinated when I spotted the pallial eye of a live C. scalariformis for the 1st time.

    Cerithidea

  • Perhaps, the tentacular eyes are not suitable for terrestrial vision and the pallial eye evolved to take over their function on land.

    Archive 2007-04-01

  • According to Houbrick, the pallial eye may help detect predators.

    Archive 2007-04-01

  • The 2 usual eyes are at the tips of the snail's tentacles, while the 3rd unpaired eye, the pallial eye, is at the edge of mantle situated near the corner of the aperture.

    Cerithidea

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