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Either one of the nurse sharks. Nurse shark. (Zoöl.) (a) A large arctic shark (Somniosus microcephalus), having small teeth and feeble jaws; -- called also sleeper shark, and ground shark. (b) A large shark (Ginglymostoma cirratum), native of the West Indies and Gulf of Mexico, having the dorsal fins situated behind th…

tor. Partakers of their spiritual things. Rom. xv. 27. Wish me partaker in my happiness. Shark.

pods like silver pennies (Thlaspi arvense). Dr. Prior. -- Penny dog (Zoöl.), a kind of shark found on the South coast of Britain: the tope. -- Penny father, a penurious person; a niggard. [Obs.] Robinson (More's Utopia). -- Penny grass (Bot.), pennyroyal. [R.] -- Penny post, a post carrying a letter for a penny; al…

arangoid fish (Naucrates ductor); -- so named because it is often seen in company with a shark, swimming near a ship, on account of which sailors imagine that it acts as a pilot to the shark. (b) The rudder fish (Seriola zonata). -- Pilot jack, a flag or signal hoisted by a vessel for a pilot. -- Pilot jacket, a pea…

Any fish having placoid scales, as the sharks.

A group of fishes including the sharks and rays; the Elasmobranchii; -- called also Placoidei.

An order of fishes including the sharks and rays; -- called also Plagiostomata.

A species of shark (Lamna cornubica), about eight feet long, having a pointed nose and a crescent-shaped tail; -- called also mackerel shark. [Written also probeagle.]

Individually; after one's own manner. [Obs.] Now, harkeneth, how I bare me properly. Chaucer.

The man-eater, or white shark (Carcharodon carcharias); -- so called on account of its causing requiems to be sung.

Any small shark of the genus Scyllium; -- called also dogfish. See Dogfish.

The basking, or liver, shark.

Any one of several species of elasmobranch fishes of the genus Pristis. They have a sharklike form, but are more nearly allied to the rays. The flattened and much elongated snout has a row of stout toothlike structures inserted along each edge, forming a sawlike organ with which it mutilates or kills its prey.…

ith dextrose. It is extracted from the kidney of the dogfish (of the genus Scylium), the shark, and the skate.

The thrasher shark.

The thrasher shark. See Thrasher.

The horny egg case of a skate, and of certain sharks.

An order of elasmobranchs including the sharks and rays; the Plagiostomi. Called also Selacha, Selache, and Selachoidei.

öl.), an ophiuran; a brittle star. -- Serpent's tongue (Paleon.), the fossil tooth of a shark; -- so called from its resemblance to a tongue with its root. -- Serpent withe (Bot.), a West Indian climbing plant (Aristolochia odoratissima). -- Tree serpent (Zoöl.), any species of African serpents belonging to the fami…

The skin of various small sharks and other fishes when having small, rough, bony scales. The dogfishes of the genus Scyllium furnish a large part of that used in the arts.