(Gr. teleios, perfect; osteon, bone). The order of the "Bony" Fishes.
(Lat. tenuis, slender; rostrum, beak). A group of the Perching Birds characterised by their slender beaks.
(Lat. terra, earth; and colo, I inhabit). Employed occasionally to designate the Earth-worms (Lumbricidoe).
Provided with a shell or hard covering.
(Lat. testis, the testicle). The organ in the male animal which produces the generative fluid or semen.
(Gr. tetra, four; bragchia, gill). The order of Cephalopoda characterised by the possession of four gills.
(Gr. thalassa, sea: kolla, glue). A division of Protozoa.
(Gr. theke, a sheath. A sheath or receptacle.
(Gr. theke; and soma, body). A division of Pteropodous Molluscs, in which the body is protected by an external shell.
(Gr. a breastplate). The chest.
(Gr. thusanoi, fringes; and oura, tail). An order of Apterous Insects.
(Lat. a flute). The shin-bone, being the innermost of the two bones of the leg, and corresponding with the radius in the anterior extremity.
(Lat. totus, whole; palma, the palm of the hand). A group of Wading Birds in which the hallux is united to the other toes by membrane, so that the feet are completely webbed.
(Gr. toxon, bow ; odous, tooth). A distinct order of Mammals.
(Gr. tracheia, the rough windpipe), The tube which conveys air to the lungs in the air-breathing Vertebrates.
The breathing-tubes of Insects and other Articulate animals.
The division of Arachnida which breathe by means of tracheae.
(Gr. trema, a pore). An order of Scolecida.
(Gr. treis, three; lobos, a lobe). An extinct order of Crustaceans.