The story
Named after the two rhinophores that emerge from the top of this slug's head, which look similar to sheep's ears.
Etymology from Wiktionary, CC BY-SA 4.0.
leaf sheep
Today it means: The sacoglossan sea slug Costasiella kuroshimae. It has green cerata across it's body and can indirectly perform photosynthesis via kleptoplasty. Full definition →