pilotaxitic (pilotaksitik)

[Irreg. Gr. πίλος, felt, + τάξις, arrangement, + -ite2 + -ic.] In lithol., a term introduced by Rosenbusch to designate a holocrystalline structure said by him pilus pilot-fish (pilot-fish), n. 1. A pelagic carangoid fish, Naucrates duct or, found in all warm seas, and occasionally on the Atlantic coast of the United States. It somewhat resembles a mackerel, being of fusiform shape, bluish color, with from five to seven dark vertical bars, and the first dorsal fin represented by a few spines. It is a foot or more long. The pilot-fish is supposed by some to have been the pompilus of the ancients, but the traditions respecting it have little foundation in fact. The generic name Naucrates was applied by the ancients to species of Echeneis and other fishes with a suctorial disk. See cut under Naucrates. 2. pl. A term extended to all the Carangid a. D. S. Jordan.-3. A remora or sucking-fish of the family Echeneididæ, as Echeneis naucrates. [This use of the term is nearer the original meaning of Naucrates.] -4. A coregonid, Co regonus quadrilateral is, the Menomonee whitefish or shad-waiter of New England, some of the Great Lakes, and parts of British America to Alaska.