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(Encyclopedia)sea pansy, fleshy, leaf-shaped colony of marine organisms belonging to the genus Renilla in the same phylum as the jellyfish. The colony consists of a stalk formed by a large organism called a primary...

sea peach

(Encyclopedia)sea peach: see tunicate.

sea pen

(Encyclopedia)sea pen, long, slender colonial organism of the same phylum as the jellyfish. Sea pen colonies are formed by several genera of the order Pennatulacea. The colony consists of a stalk formed by an organ...

Sea Peoples

(Encyclopedia)Sea Peoples, modern term for any of the groups of people who attacked Egypt and the E Mediterranean by sea and sometimes by land c.1200 b.c. They are recorded as having fought in battles with Egypt du...

sea pink

(Encyclopedia)sea pink: see leadwort.

sea pork

(Encyclopedia)sea pork: see tunicate.

sea robin

(Encyclopedia)sea robin: see sculpin.

sea slug

(Encyclopedia)sea slug, name for a marine gastropod mollusk that lacks a shell as an adult and is usually brightly colored. Sea slugs, or nudibranchs, are distributed throughout the world, with the greatest numbers...

sea spider

(Encyclopedia)sea spider, common name for members of the class Pycnogonida, long-legged, rather spiderlike organisms of the subphylum Chelicerata, widely distributed in marine waters. Most are tiny, from 1 to 9 mm ...