trochotoma

[Mod. Lat. trochus, and Gr. tomē a notch.] Palæont .: A genus of Haliotide, wah ten species, from the Lias to the Coral Rag of Britain, France, . Shell trochi form, slightly concave beneath; whorls flat, spirally striated, rounded at the outer angles; lip with a single perforation near the margin. troch'-ŭs, s. (Lat.) [TROCHO-.] 1. Zool .: A genus of Turbinide, with 200 species, universally distributed, from low water to fifteen fathoms, the smaller species range nearly to 100 fathoms. Shell pyramidal, with a nearly flat base; whorls numerous, flat, variously striated; aperture oblique, rhombic, pearly inside; columella twisted, slightly truncated; outer lip thin; operculum horny, multispiral. Woodward enumerates ten sub-genera, to which Tate adds some others. 2. Palæont .: Fo il species 361, from the Devonian onward. Found in Europe, North America, and Chili. trock, *troke, v . t . [TRUCK, v.] To truck, to barter; to do busine on a small scale. ( Scotch .) "Troking and communing w' that Meg Merrilies." Scott : Guy Manner ing , ch. xi. trō-cō, s. [Sp. trucos trucks, a game somewhat resembling billiards. ( Newman & Barretti.)] Games: An old English game revived, formerly known as "lawn billiards," from which billiards is said to have had its origin. Troco is played on a lawn with wooden balls and a cue ending in a spoon-shaped iron projection. In the center of the green there is an iron ring moving on a pivot, and the object is to drive the ball through the ring. Points are also made by cannoning. [CANNON (2), 8.] trod, pret . & pa. par. of v . [TREAD, v.] †trěd, trod-den, pa . par . of v . [TREAD.] *trode, pret . & pa . par . of v . [TREAD, v .] *trōde, *trōad, s . [A. S. tród , from tredan =to tread (q. v.).] Tread, footing. "In humble dales is footing fast, The trode is not so tickle. Spenser: Shepherd's Calendar ; July . trō-ěg-er-Ite, s. [After Herr Troeger; suff. -ite (Min.).] Min.: A mineral occurring in thin, tabular crystals, with walpurgite and other minerals, at the Wei er Hirsch mine, Schneeberg, Saxony. Crys tall i zati on, monoclinic; color, lemon-yellow. Com position: A hydrated arsenate of uranium; formula 5U2O3,2A5O5+20НО. trôe-lỹ, s. [TROOLY.] trō-gi-næ, s. pl. [Mod. Lat. trox, gen it. trog (is); Lat. fem. adj. suff. -inæ.] Entom .: A sub-family of Scarab eide, resembling the Geotrupine in the form of the head, but the legs are not adapted for burrowing. They feed on animal substance on the surface of the ground or on trees. Those which frequent the former situation are colored like the sandy soil, and often coated with sand. The others are frequently metallic, and can roll themselves up like a ball. fate, făt, färe, amidst, what, fall, 4198 trog-lo-dyte, *trog'-lo-dīte, s . & a . [Fr. trog lodyte , from Gr. troglodytes =one who creeps into holes, a cave-dweller, from trōgle =a cave, and dyō =to enter, to creep into.] A. As substantive: I. Literally: 1. ( Pl .): The name given by the ancient Greeks to various races of low civilization, who either excavated dwellings in the earth or used natural cav Trojan trō'-gon, s. [Gr., pr. par. of trōgo =to gnaw.] 1. Ornithology: (1) The type-family of Trogon ide (q. v.), with twenty-four species, ranging from Paraguay to Mexico, and west of the Andes in Ecuador. (2) Any individual of the genus Trogon, or the family Trogon ide (q.v.). extended as far west as Mauri tan i a, and as far east as the Caucasus; but the best known were those of southern Egypt and Ethiopia. They were said not to po e the power of speech-a rhetorical method of stating that their language differed from that of them, and their general habits were rude and the Greeks. Community of wives existed among debased. At the present time the mountainous regions of Arabia are filled with caves which have been converted into permanent habitations by half savage tribes of Bedouins, and it is probable that these belong to the same race as the troglodytic population of Ptolemy and other geographers. It was formerly thought that cave-dwellers were peculiar to Africa; but recent archæological discoveries show that they occurred also in Europe and America, and the prehistoric men of Central Europe and Britain were to a great extent troglodytic. At the 2. Palæont.: Remains have been found in the Miocene of France. At that exceptionally mild period in the northern hemisphere these birds may but as the climate became more severe they were gradually restricted to the tropical regions, where alone a sufficiency of fruit and insect-food is found all the year round. ( Wallace .)