(n.) A genus of a large naked mollusks having a very large, broad, fringed cephalic disk, and branched dorsal gills. Some of the species become a foot long and are brilliantly colored.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). tethys. Retrieved September 22, 2026, from http://smartdefine.org/tethys/definitions/2071531 |
| Chicago | Webster's. 2011. "tethys" http://smartdefine.org/tethys/definitions/2071531 (accessed September 22, 2026). |
| Harvard | Webster's 2011, tethys, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/tethys/definitions/2071531>. |
| MLA | Webster's. "tethys" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/tethys/definitions/2071531> |