or Sea-hare; a genus of marine plate insects belonging to the order of vermes mollusca. The body is covered with membranes reflected. It hath a shield-like membrane on the back, a lateral pore on the right side, the anus on the extremity of the back, with four feelers resembling ears. The figure represents the depilans minor, which grows to two inches and a half in length, and to more than an inch in diameter; its body approaches to an oval figure, and is soft, punctated, of a kind of gelatinous substance, and of a pale lead colour; from the larger extremity there arise four oblong and thick protuberances; these are the tentacula; two of them stand nearly erect, two are thrown backward. It is not uncommon about our shores, especially off Anglesea. It causes, by its poisonous juice, the hair to fall off the hands of those that touch it; and is so extremely fetid as to create sickness at stomach.—The major, or greater sea-hare, grows to the length of eight inches.