GLOSSARY. 



51 



Tripartite. Divided into three parts. 



Tripedal. Having three feet. 



Triquetrous. Whose horizontal sections 

 are equilateral triangles. 



Triradiate. Consisting of three spokes 

 or rays. 



Triradiated. Having three rays. 



Triturate. To reduce to a very fine pow- 

 der by pulverization. 



Trivalvular. Having three valves. 



Troglodytical. Resembling, in mode of 

 life, the Troglodytes, a people of Ethi- 

 opia, whom the ancients represented 

 as living in caves. 



Trophi. The parts of the mouth (in in- 

 sects) employed in acquiring and pre- 

 paring the food. 



Tropical. Pertaining to or being with- 

 in the tropics; as, tropical climates, 

 winds, &c. 



Truncate (elytra). When they are short- 

 er than the abdomen and transverse at 

 the end. 



Truncated. Cut off short, or terminating 

 abruptly. 



Truttaceous. Belonging to fish of the 

 trout kind. 



Tubercle. A little pimple-like knob. 



Tubercular : Tuberculous. Full of knobs 

 or pimples. 



Tuberculate. Covered with small pro- 

 tuberances. 



Tuberosities. Prominent knots or excres- 

 cences. 



Tubicolar. Inhabiting a tube. 



Tubular. In the shape of a tube ; hollow 

 and cylindrical. 



Tubulate; Tulmlous. Hollow. 



Tubulose. When the tongue of an insect 

 emerges from the labium, is long and 

 tubular, and capable of inflation. 



Tuft. A bunch of feathers or hairs. 



Tumid. Protuberant; enlarged or dis- 

 tended. 



Tumular. Formed into a heap or hillock. 



Tunioata. The class of acephalous Mol- 

 lusca which are enveloped in an elastic 

 tunic not defended by a shelL 



Tunicated. Coated. 



Turbinate. Top-shaped ; triangular, with 

 curved sides. 



Turbinated. Wreathed conically from a 

 larger base to a kind of apex ; as t ur- 

 binated shells. 



Turbinifonn. Whose vertical section is 

 turbinate, and horizontal circular 



Turgid. Swollen. 



Turretc.d. When the head of an insect is 

 producted into a kind of columnar re- 

 curved turret or rostrum, in the sides 

 of which, towards the end, the eyes 

 are fixed. 



Turrilite. The fossil remains of a spiral 

 multilocular shell. 



Tympanum. The drum of the ear. 



Type. A general form, such as is com- 

 mon to the species of a genus, or the 

 individuals of a species. 



Typijied. Figured, or represented by a 

 model form, or resemblance. 



U. 



Ubiquity. Existence in all places or ev- 

 erywhere at the same time. 



Uliginous. Muddy, oozy, slimy. 



Ulnar. Pertaining to the ulna ; as, the 

 ulnar nerve. 



Ultramarine. Situated or beyond the 

 sea. Also, the name of a beautiful and 

 durable sky-blue color, formed of the 

 mineral called lapis lazuli. 



Umbilical. Pertaining to the navel. 



Umbilicated. Having a depression in the 

 centre like a navel. 



Umbilicus. A hole, either deep or shal- 

 low, on the side of the inner lip in spi- 

 ral shells, formed by the inner edges of 

 the whorls not touching each other. 



Umbles. The entrails of a deer. 



Umbo (in bivalve shells). The promi- 

 nent part which turns over the hinge. 



Umbonate. Bossed ; having a raised 

 knob in the centre. 



Umbraculate. When there is upon the 

 head of insects an umbrella-shaped 

 process. 



Uncinated. Set or covered with bent 

 spines like hooks. 



Unctuous. Fat, oily ; having a resem- 

 blance to oil or grease. 



Underground. Below the surface of the 

 earth. 



Undiaphanous. Not pellucid. 



Undose. Having undulating nearly par- 

 allel broader depressions which run in- 

 to each other, and resemble the sand of 

 the sea-shore when left by the tide. 



