sea mouse

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sea mouse,

marine worm of the genus Aphrodite with a short, broad, segmented body, found in moderately deep water. The upper, or dorsal, surface of a sea mouse bears 15 pairs of raised scales; the space between the scales and the body surface forms a channel for the flow of water carrying oxygen for respiration. The entire dorsal surface, including the scales, is covered by long, feltlike threads called setae, which produce a brilliant iridescence; heavier, bristlelike setae project through them. Sea mice commonly reach 6 to 8 in. (15–20 cm) in length and 2 in. (5 cm) in width. They are classified in the phylum AnnelidaAnnelida
[Lat., anellus=a ring], phylum of soft-bodied, bilaterally symmetrical (see symmetry, biological), segmented animals, known as the segmented, or annelid, worms.
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, class Polychaeta, family Aphroditidae.
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asterra and aphrodita. The new species that we describe here differs from L.
Principal Groups Species Echinoderms Astropecten brasiliensis brasiliensis Muller & Troschel 1842 Arbacia dufresnii (Blainville 1825) Annelids Aphrodita longicomis Kinberg 1855 Bivalves Aequipecten tehuelchus (d'Orbigny 1846) Mytilus edulis platensis d'Orbigny 1846 Ostrea puelchana d'Orbigny 1841 Gastropods Adelomelon beckii (Broderip 1836) Crepidula argentina Simone, Pastorino & Penchaszadeh 2000 Crustaceans Libinia spinosa Milne Edwards 1834 Fishes Paralichtys patagonicus Jordan 1889 Percophis brasiliensis Quoy & Gaimard 1824 Squatina argentina (Marini 1930) Discopyge tschudii Heckel 1846