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Any one of numerous species of marine bivalve mollusks of the genus Pecten and allied genera of the family Pectinidæ. The shell is usually radially ribbed, and the edge is therefore often undulated in a characteristic manner. The large adductor muscle of some the species is much used as food. One species (Vola Jacobæus…

A class of marine cephalate Mollusca having a tubular shell open at both ends, a pointed or spadelike foot for burrowing, and many long, slender, prehensile oral tentacles. It includes Dentalium, or the tooth shells, and other similar shells. Called also Prosopocephala, and Solenoconcha.

A marine food fish, the scarus, or parrot fish.

Of or pertaining to the Scaridæ, a family of marine fishes including the parrot fishes.

orm school to which boys are committed by the courts to be disciplined, and instructed as mariners.

Of or pertaining to the Sciænidæ, a family of marine fishes which includes the meagre, the squeteague, and the kingfish.

A tubular structure found in Potsdam sandstone, and believed to be the fossil burrow of a marine worm.

A marine food fish of the genus Scorpæna, as the European hogfish (S. scrofa), and the California species (S. guttata).

cutting the thread on a wooden screw. -- Screw dock. See under Dock. -- Screw engine, a marine engine for driving a screw propeller. -- Screw gear. See Spiral gear, under Spiral. -- Screw jack. Same as Jackscrew. -- Screw key, a wrench for turming a screw or nut; a spanner wrench. -- Screw machine. (a) One of a s…

Any one of numerous species of marine cottoid fishes of the genus Cottus, or Acanthocottus, having a large head armed with sharp spines, and a broad mouth. They are generally mottled with yellow, brown, and black. Several species are found on the Atlantic coasts of Europe and America.

A marine sparoid food fish (Stenotomus chrysops, or S. argyrops), common on the Atlantic coast of the United States. It appears bright silvery when swimming in the daytime, but shows broad blackish transverse bands at night and when dead. Called also porgee, paugy, porgy, scuppaug.

((Zoöl.) (a) A large marine food fish (Serranus, or Centropristis, atrarius) which abounds on the Atlantic coast of the United States. It is dark bluish, with black bands, and more or less varied with small white spots and blotches. Called also, locally, blue bass, black sea bass, blackfish, bluefish, and black perch.…

Any large marine mammal, as a seal, walrus, or cetacean.

See Marine rainbow, under Rainbow.

Mariner's card, or compass.

Any marine siluroid fish, as Ælurichthys marinus, and Arinus felis, of the eastern coast of the United States. Many species are found on the coasts of Central and South America.

The mariner's compass. See under Compass.

A marine deity; a fabulous being supposed to live in, or have dominion over, the sea, or some particular sea or part of the sea, as Neptune.

A gown or frock with short sleeves, formerly worn by mariners. Shak.

Any branched marine bryozoan resembling moss.