Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

196Maggenti and Gardnerchondrophore n. [Gr. chondros, cartilage; pherein, to bear] 1.(CNID: Hydrozoa) A disc-like colony of floating hydroids ofthe order Chondrophora; a chrondrophoran. 2. (MOLL: Bivalvia)A pit or large spoon-shaped form projecting fromthe hinge plate; support for the inner hinge cartilage.chone n. [Gr. choane, funnel] (PORIF) A canal that penetratesthe cortex into which the dermal pores generally open.chord, chorda n. [L. chorda, string] A cord, nerve or filament.chordal a.chord of the wing (ARTHRO: Insecta) The straight line joiningthe leading and trailing edges of a wing.chordotonal organ Subcuticular sense organs of insects andperhaps nematodes that consist of one to several hundredchordotonal sensilla (scolopidia); attached to the cuticlethat function as mechanoreceptors; abundant in tympanalorgans; a scolopophorus organ. see tympanal organ,myochordotonal organ.chore n. [Gr. choros, place] An area in which geographical orenvironmental conditions are in harmony. see biochore,biotype.chorion n. [Gr. chorion, membrane enclosing the fetus] Theoutermost shell or membranous covering of the egg ofvarious invertebrates.choriothete n. [Gr. chorion, membrane enclosing the fetus;thete, servant] (ARTHRO: Insecta) A muscular structure ofcyclical development that adheres to the chorion of the eggof Glossina and the Pupipara , and by the actions of themuscles aids in the removal of the chorion.chorology n. [Gr. choros, place; logos, discourse] The sciencedealing with the geographical distribution of organisms; zoogeography.choronomic a. [Gr. choros, place; nomos, place or conditionfor living] The external influences effecting animals, suchas geographical or regional environment. see autonomic.chorotype n. [Gr. choros, place; typos, type] A local type.chroma n. [Gr. chroma, color] The hue and saturation of acolor, i.e., red, green, brown, etc., as opposed to black,