(n.) A genus of transparent marine annelids which swim actively at the surface of the sea. They have deeply divided or forked finlike organs (parapodia). This genus is the type of the order or suborder, Gymnocopa.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). tomopteris. Retrieved September 25, 2026, from http://smartdefine.org/tomopteris/definitions/2073162 |
| Chicago | Webster's. 2011. "tomopteris" http://smartdefine.org/tomopteris/definitions/2073162 (accessed September 25, 2026). |
| Harvard | Webster's 2011, tomopteris, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/tomopteris/definitions/2073162>. |
| MLA | Webster's. "tomopteris" 28 May 2011. Web. 25 September 2026. <http://smartdefine.org/tomopteris/definitions/2073162> |