Aplysia
Aplysia ({not transcribed}) , noun
[Greek {not transcribed} a dirty sponge, from {not transcribed} unwashed; 'a priv. + {not transcribed} to wash.]
(Zoology) A genus of marine mollusks of the order Tectibranchiata; the sea hare. Some of the species when disturbed throw out a deep purple liquor, which colors the water to some distance. See Illust. in Appendix.