sand shark n 1: shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers [syn: sand tiger, sand shark, Carcharias taurus, Odontaspis taurus]

Sand grouse (Zo["o]l.), any one of many species of Old World birds belonging to the suborder Pterocletes, and resembling both grouse and pigeons. Called also rock grouse}, rock pigeon, and ganga. They mostly belong to the genus Pterocles, as the common Indian species ({P. exustus}). The large sand grouse ({P. arenarius}), the painted sand grouse ({P. fasciatus}), and the pintail sand grouse ({P. alchata}) are also found in India. See Illust. under Pterocletes. Sand hill, a hill of sand; a dune. Sand-hill crane (Zo["o]l.), the American brown crane ({Grus Mexicana}). Sand hopper (Zo["o]l.), a beach flea; an orchestian. Sand hornet (Zo["o]l.), a sand wasp. Sand lark. (Zo["o]l.) (a) A small lark ({Alaudala raytal}), native of India. (b) A small sandpiper, or plover, as the ringneck, the sanderling, and the common European sandpiper. (c) The Australian red-capped dotterel ({[AE]gialophilus ruficapillus}); -- called also red-necked plover. Sand launce (Zo["o]l.), a lant, or launce. Sand lizard (Zo["o]l.), a common European lizard ({Lacerta agilis}). Sand martin (Zo["o]l.), the bank swallow. Sand mole (Zo["o]l.), the coast rat. Sand monitor (Zo["o]l.), a large Egyptian lizard ({Monitor arenarius}) which inhabits dry localities. Sand mouse (Zo["o]l.), the dunlin. [Prov. Eng.] Sand myrtle. (Bot.) See under Myrtle. Sand partridge (Zo["o]l.), either of two small Asiatic partridges of the genus Ammoperdix. The wings are long and the tarsus is spurless. One species ({A. Heeji}) inhabits Palestine and Arabia. The other species ({A. Bonhami}), inhabiting Central Asia, is called also seesee partridge}, and teehoo. Sand picture, a picture made by putting sand of different colors on an adhesive surface. Sand pike. (Zo["o]l.) (a) The sauger. (b) The lizard fish. Sand pillar, a sand storm which takes the form of a whirling pillar in its progress in desert tracts like those of the Sahara and Mongolia. Sand pipe (Geol.), a tubular cavity, from a few inches to several feet in depth, occurring especially in calcareous rocks, and often filled with gravel, sand, etc.; -- called also sand gall. Sand pride (Zo["o]l.), a small British lamprey now considered to be the young of larger species; -- called also sand prey. Sand pump, in artesian well boring, a long, slender bucket with a valve at the bottom for raising sand from the well. Sand rat (Zo["o]l.), the pocket gopher. Sand rock, a rock made of cemented sand. Sand runner (Zo["o]l.), the turnstone. Sand saucer (Zo["o]l.), the mass of egg capsules, or o["o]thec[ae], of any mollusk of the genus Natica and allied genera. It has the shape of a bottomless saucer, and is coated with fine sand; -- called also sand collar}. Sand screw (Zo["o]l.), an amphipod crustacean ({Lepidactylis arenarius}), which burrows in the sandy seabeaches of Europe and America. Sand shark (Zo["o]l.), an American shark ({Odontaspis littoralis}) found on the sandy coasts of the Eastern United States; -- called also gray shark, and dogfish shark}. See Illust. under Remora. Sand skink (Zo["o]l.), any one of several species of Old World lizards belonging to the genus Seps; as, the ocellated sand skink ({Seps ocellatus}) of Southern Europe. Sand skipper (Zo["o]l.), a beach flea, or orchestian. Sand smelt (Zo["o]l.), a silverside. Sand snake. (Zo["o]l.) (a) Any one of several species of harmless burrowing snakes of the genus Eryx, native of Southern Europe, Africa, and Asia, especially E. jaculus of India and E. Johnii, used by snake charmers. (b) Any innocuous South African snake of the genus Psammophis, especially P. sibilans. Sand snipe (Zo["o]l.), the sandpiper. Sand star (Zo["o]l.), an ophiurioid starfish living on sandy sea bottoms; a brittle star. Sand storm, a cloud of sand driven violently by the wind. Sand sucker, the sandnecker. Sand swallow (Zo["o]l.), the bank swallow. See under Bank. Sand tube, a tube made of sand. Especially: (a) A tube of vitrified sand, produced by a stroke of lightning; a fulgurite. (b) (Zo["o]l.) Any tube made of cemented sand. (c) (Zo["o]l.) In starfishes, a tube having calcareous particles in its wall, which connects the oral water tube with the madreporic plate. Sand viper. (Zo["o]l.) See Hognose snake. Sand wasp (Zo["o]l.), any one of numerous species of hymenopterous insects belonging to the families Pompilid[ae] and Spherid[ae], which dig burrows in sand. The female provisions the nest with insects or spiders which she paralyzes by stinging, and which serve as food for her young.

Shark \Shark\, n. [Of uncertain origin; perhaps through OF. fr. carcharus a kind of dogfish, Gr. karchari`as, so called from its sharp teeth, fr. ka`rcharos having sharp or jagged teeth; or perhaps named from its rapacity (cf. Shark, v. t. & i.); cf. Corn. scarceas.] 1. (Zo["o]l.) Any one of numerous species of elasmobranch fishes of the order Plagiostomi, found in all seas. Note: Some sharks, as the basking shark and the whale shark, grow to an enormous size, the former becoming forty feet or more, and the latter sixty feet or more, in length. Most of them are harmless to man, but some are exceedingly voracious. The man-eating sharks mostly belong to the genera Carcharhinus, Carcharodon, and related genera. They have several rows of large sharp teeth with serrated edges, as the great white shark ({Carcharodon carcharias, or Rondeleti}) of tropical seas, and the great blue shark ({Carcharhinus glaucus}) of all tropical and temperate seas. The former sometimes becomes thirty-six feet long, and is the most voracious and dangerous species known. The rare man-eating shark of the United States coast ({Charcarodon Atwoodi}) is thought by some to be a variety, or the young, of C. carcharias. The dusky shark ({Carcharhinus obscurus}), and the smaller blue shark ({C. caudatus}), both common species on the coast of the United States, are of moderate size and not dangerous. They feed on shellfish and bottom fishes. 2. A rapacious, artful person; a sharper. [Colloq.] 3. Trickery; fraud; petty rapine; as, to live upon the shark. [Obs.] --South. Baskin shark, Liver shark, Nurse shark, Oil shark, Sand shark, Tiger shark, etc. See under Basking, Liver, etc. See also Dogfish, Houndfish, Notidanian, and Tope. Gray shark, the sand shark. Hammer-headed shark. See Hammerhead. Port Jackson shark. See Cestraciont. Shark barrow, the eggcase of a shark; a sea purse. Shark ray. Same as Angel fish (a), under Angel. Thrasher shark, or Thresher shark, a large, voracious shark. See Thrasher. Whale shark, a huge harmless shark ({Rhinodon typicus}) of the Indian Ocean. It becomes sixty feet or more in length, but has very small teeth.

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