Sea Hare


Also found in: Dictionary, Thesaurus, Wikipedia.

Sea Hare

 

any one marine gastropod mollusk of the genus Aplysia of the subclass Opisthobranchiata. Body length, up to 40 cm. There are two pairs of cephalic tentacles; the posterior tentacles

Table 1. Major seas
Name and typeArea (sq km)Greatest depth (m)
1Classified as seas on the basis of hydrological conditions
PACIFIC OCEAN
Coral Sea (semienclosed)...............4,791,0009,140
South China Sea (semienclosed)............3,447,0005,245
Bering Sea (semienclosed)................2,304,0004,191
Sea of Okhotsk (semienclosed).............1,583,0003,372
Sea of Japan (semienclosed).............978,0003,669
East China Sea (semienclosed)...............752,0002,717
Banda Sea (interisland).................695,0007,440
Java Sea (interisland)..................480,00054
Celebes Sea (interisland)................435,0005,842
Sulu Sea (interisland)..................348,0005,094
ATLANTIC OCEAN
Caribbean Sea (semienclosed).............2,754,0007,680
Mediterrean Sea (inland)...............2,500,0005,121
Gulf of Mexico1 (semienclosed)............1,543,0005,203
Hudson Bay1 (inland)....................819,000301
North Sea (marginal).....................544,000238
Black Sea (inland)......................420,3002,211
Baltic Sea (inland) ........................386,000459
Sea of Azov (inland).......................38,00014
INDIAN OCEAN
Arabian Sea (semienclosed)................3,683,0005,203
Arafura Sea (marginal)..................1,037,0003,680
Red Sea (inland).........................450,0002,811
Sea of Timor (marginal)................615,0003,310
ARCTIC OCEAN
Barents Sea (marginal)....................1,405,000600
Norwegian Sea (marginal)..................1,383,0003,921
Greenland Sea (marginal).................1,205,0004,846
East Siberian Sea (marginal)..................936,000155
Kara Sea (marginal) .......................880,000620
Baffin Bay1 (semienclosed)................689,0002,136
Laptev Sea (marginal).....................700,0003,385
Chukchi Sea (marginal)..................582,000160
Beaufort Sea (marginal)................476,0004,683
White Sea (internal)....................90,000330

resemble hare’s ears. A mantle covers the thin lamellar shell. Glands in the mantle cavity secrete a poisonous pigmented fluid. The foot has lateral flaps, which serve for swimming. There are approximately 35 species. Sea hares are herbivorous and live mainly in tropical seas. Their large nerve cells are used in neuro-physiological research.

References in periodicals archive ?
Life history and aging of captive-reared California sea hares (Aplysia californica).
Thermal preference, tolerance and temperature-dependent respiration in the California sea hare Aplysia californica.
1987) Structure of a triphosphonopentaosyl ceramide containing 4- O-methyl-N-acetylglucosamine from the skin of the sea hare, Aplysia kurodai.
Kathy de Wetoleson, a guide for the Island Packers trip to Anancapa Island, shows onlookers a Sea Hare.
On 3 November 1990, 20 specimens of the sea hare Aplysia cervina were collected from the south Laguna Madre at South Padre Island, Texas.
We examined metabolic rate, shell morphometry, and calcification in the sea hare Aplysia punctata under short-term exposure (19 days) to an extreme ocean acidification scenario (pH 7.
Malcolm, who tells me about the storytelling walks he has been on and led, making a tale last the whole way, nominates The Sea Hare.
Desperate for information, they have asked the public for help in compiling a detailed dossier on the romantic rockpool antics of the tiny sea hare - a type of slug which has group sex sessions, with male and female slugs sharing the same reproductive characteristics.
Evolutionary biologists have found that the California sea hare, a mollusk that goes by the scientific name of Aplysia californica, has a protein similar to proteins in people that respond to estrogen and other steroid hormones.
1993; Kohbara and Caprio, 1996; reviewed in Caprio and Derby, 2008) and are already used as an electrophysiological model of neural processing of sea hare inking chemical defenses (Sheybani et at.
She received a $30,000 scholarship for her study of a neuronal pathway controlling habituation, a simple form of learning, in the sea hare Aplysia.