Thyca
| Thyca | |
|---|---|
 | |
| Shell of Thyca crystallina | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Eulimidae |
| Genus: | Thyca H. Adams & A. Adams, 1854 |
| Type species | |
| Pileopsis astericola A. Adams & Reeve, 1850 | |
| Synonyms | |
| |
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:
- Thyca astericola (A. Adams & Reeve, 1850)
- Thyca callista Berry, 1959
- Thyca crystallina (Gould, 1846)
- Thyca ectoconcha P. Sarasin & F. Sarasin, 1887
- Thyca hawaiiensis Warén, 1980
- Thyca lactea (Kuroda, 1949)
- Thyca nardoafrianti (Habe, 1976)
- Thyca sagamiensis (Kuroda & Habe, 1971)
- Thyca stellasteris Koehler & Vaney, 1912
- Species brought into synonymy
- Thyca pellucida Kükenthal, 1897: synonym of Thyca crystallina (Gould, 1846)
References
- 1 2 3 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
- ↑ Combes, Claude (2005). The Art of Being a Parasite. University of Chicago Press. p. 25. ISBN 978-0-226-11438-5.
- ↑ G.W. Tryon (1886) Manual of Conchology v; VIII
- 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