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A division of Crinoidea including numerous fossil species in which the body is covered with tessellated plates.

Cephalopoda having four gills. Among living species it includes only the pearly nautilus. Numerous genera and species are found in the fossil state, such as Ammonites, Baculites, Orthoceras, etc.

Any one of numerous species of plectognath fishes belonging to Tetrodon and allied genera. Each jaw is furnished with two large, thick, beaklike, bony teeth. [Written also tetradon.]

Any one of numerous species of Hemiptera belonging to Tettigonia and allied genera; a leaf hopper.

needle through the material. It is usually made of metal, and has upon the outer surface numerous small pits to catch the head of the needle.

Any one of several species of fishes belonging to Polynemus and allied genera. They have numerous long pectoral filaments.

Any one of numerous small species of Thysanoptera, especially those which attack useful plants, as the grain thrips (Thrips cerealium).

Any one of numerous species of singing birds belonging to Turdus and allied genera. They are noted for the sweetness of their songs.

Any one of numerous species of large parasitic mites which attach themselves to, and suck the blood of, cattle, dogs, and many other animals. When filled with blood they become ovate, much swollen, and usually livid red in color. Some of the species often attach themselves to the human body. The young are active and ha…

-shell tiger. -- Mexican tiger (Zoöl.), the jaguar. -- Tiger beetle (Zoöl.), any one of numerous species of active carnivorous beetles of the family Cicindelidæ. They usually inhabit dry or sandy places, and fly rapidly. -- Tiger bittern. (Zoöl.) See Sun bittern, under Sun. -- Tiger cat (Zoöl.), any one of several…

ipbuilding) Same as Room and space. See under Room. -- Timber beetle (Zoöl.), any one of numerous species of beetles the larvæ of which bore in timber; as, the silky timber beetle (Lymexylon sericeum). -- Timber doodle (Zoöl.), the American woodcock. [Local, U.S.] -- Timber grouse (Zoöl.), any species of grouse that…

Any species of Tinea, or of the family Tineidæ, which includes numerous small moths, many of which are injurious to woolen and fur goods and to cultivated plants. Also used adjectively.

Any one of numerous species of small singing birds belonging to the families Paridæ and Leiotrichidæ; a titmouse.

Any one of numerous small spring birds belonging to Anthus, Corydalla, and allied genera, which resemble the true larks in color and in having a very long hind claw; especially, the European meadow pipit (Anthus pratensis).

Any one of numerous species of small insectivorous singing birds belonging to Parus and allied genera; -- called also tit, and tomtit.

Any one of numerous species of batrachians belonging to the genus Bufo and allied genera, especially those of the family Bufonidæ. Toads are generally terrestrial in their habits except during the breeding season, when they seek the water. Most of the species burrow beneath the earth in the daytime and come forth to fe…

Any one of numerous species of marine top_shaped shells of the genus Thochus, or family Trochidæ.

Any one of numerous species of elasmobranch fishes belonging to Torpedo and allied genera. They are related to the rays, but have the power of giving electrical shocks. Called also crampfish, and numbfish. See Electrical fish, under Electrical.

Any one of numerous species of reptiles of the order Testudinata.

Any one of numerous species of small moths of the family Tortricidæ, the larvæ of which usually roll up the leaves of plants on which they live; -- also called leaf roller.