Thyca

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Genus of gastropods

title: "Thyca" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["eulimidae"] description: "Genus of gastropods" topic_path: "general/eulimidae" source: "https://en.wikipedia.org/wiki/Thyca" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of gastropods ::

| image= Thyca crystallina 002.jpg | image_caption= Shell of Thyca crystallina | taxon = Thyca | authority =H. Adams & A. Adams, 1854 | type_species = Pileopsis astericola | type_species_authority = A. Adams & Reeve, 1850 | synonyms_ref= | synonyms=

  • Bessomia Berry, 1959
  • Capulus (Thyca)
  • Granulithyca Habe, 1976
  • Kiramodulus Kuroda, 1949
  • Thyca (Bessomia) Berry, 1959 · accepted, alternate representation
  • Thyca (Kiramodulus) Kuroda, 1949 · accepted, alternate representation
  • Thyca (Thyca) H. Adams & A. Adams, 1854 · accepted, alternate representation

Thyca is a genus of small sea snails, marine gastropod mollusks in the family Eulimidae. These snails are ectoparasites of starfish; they are relatively unmodified, the underside having become a suction disc with a central mouth that draws nourishment from the host's tissues.

Description

The conical shell is longitudinally grooved, transparent and slightly curved.

Species

Species within the genus Thyca include:

References

  • Habe T. (1976) Parasitic gastropods from echinoderms of Japan. Bulletin of the National Science Museum [Tokyo], ser. A, 2(3): 157-171. [22 September 1976] page(s): 165
  • Warén A. (1980). Revision of the genera Thyca, Stilifer, Scalenostoma, Mucronalia and Echineulima (Mollusca, Prosobranchia, Eulimidae). Zoologica Scripta 9: 187-210
  • Warén A. (1984) A generic revision of the family Eulimidae (Gastropoda, Prosobranchia). Journal of Molluscan Studies suppl. 13: 1-96. page(s): 46

References

  1. Bouchet, P. (2012). Thyca H. Adams & A. Adams, 1854. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196298 on 2012-07-25
  2. Combes, Claude. (2005). "The Art of Being a Parasite". University of Chicago Press.
  3. [https://archive.org/stream/manualconch08tryorich#page/n5/mode/2up G.W. Tryon (1886) Manual of Conchology v; VIII]

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eulimidae