polychaete worms

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• polychaete hypothesis — ▪ paleontology       theory that conodonts (minute toothlike structures found as fossils in marine rocks) are parts of the jaw apparatus of polychaete worms, a class of the annelid, or segmented, worms. Conodonts resemble the jaws (scolecodonts)… …   Universalium

• polychaete — [päl′i kēt΄] n. [< ModL Polychaeta < Gr polychaitēs, with much hair < poly , POLY + chaitē, hair] any of a class (Polychaeta) of mostly marine, annelid worms, having on most segments a pair of fleshy, leglike appendages bearing numerous… …   English World dictionary

• Polychaete — Taxobox fossil range = Cambrian (or earlier?) present name = Polychaetes image width = 250px image caption = A variety of marine worms : plate from Das Meer by M. J. Schleiden (1804–1881). regnum = Animalia phylum = Annelida classis = Polychaeta… …   Wikipedia

• polychaete — /pol i keet /, n. 1. any annelid of the class Polychaeta, having unsegmented swimming appendages with many setae or bristles. adj. 2. Also, polychaetous. belonging or pertaining to the Polychaeta. [1885 90; < NL Polychaeta < Gk polychaítes having …   Universalium

• polychaete — noun Etymology: ultimately from Greek polychaitēs having much hair, from poly + chaitē long hair Date: 1896 any of a class (Polychaeta) of chiefly marine annelid worms (as clam worms) usually with paired segmental appendages, separate sexes, and… …   New Collegiate Dictionary

• polychaete — pol•y•chaete [[t]ˈpɒl ɪˌkit[/t]] n. 1) ivt any of various marine annelid worms of the class Polychaeta, having regularly paired body bristles and often other appendages 2) ivt Also, pol y•chae′tous. belonging or pertaining to the Polychaeta •… …   From formal English to slang

• polychaete — /ˈpɒlikit/ (say poleekeet) noun 1. any of the Polychaeta, a group or division of annelids having unsegmented swimming appendages (parapodia) with many chaetae or bristles, and including most of the common marine worms. –adjective Also,… …  

• List of worms of the Houtman Abrolhos — The marine worms identified at the Houtman Abrolhos comprise 22 species of the polychaete family Terebellidae,cite book | first = Christer | last = Erséus | year = 1997 | chapter = Marine Tubificidae (Oligochaeta) from the Montebello and Houtman… …   Wikipedia

• annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… …   Universalium

• circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… …   Universalium

• Terebellida — NOTOC Taxobox name = Terebellida image width = 240px image caption = Chaetozone setosa (Cirratulidae), a burrowing terebellid regnum = Animalia phylum = Annelida classis = Polychaeta subclassis = Palpata ordo = Canalipalpata subordo = Terebellida …   Wikipedia