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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 223cerata) The slender or pointed appendage immediately infront <strong>of</strong> the spinnerets in some spiders; in others, greatlyreduced or seemingly missing; homologue <strong>of</strong> the anteriormedian spinnerets or cribellum.columella n. [L. dim. <strong>of</strong> columna, column] 1. A rod, pillar orcolumn. 2. (CNID: Anthozoa) The central skeletal mass <strong>of</strong>many corals. 3. (MOLL: Gastropoda) The solid or hollowpillar <strong>of</strong> a univalve shell around which the whorls are arranged.4. (NEMATA) A structural unit <strong>of</strong> the female uteruscomposed <strong>of</strong> columns <strong>of</strong> cells believed to form the eggshell; prouterus; quadricolumella; tricolumella; oogenotop;crustaformeria.columellar fold (MOLL: Gastropoda) A spiral wound ridge onthe columella that projects into the interior <strong>of</strong> the shell.columellar lip (MOLL: Gastropoda) The internal lip <strong>of</strong> the aperture<strong>of</strong> a shell.columellar muscle (MOLL: Gastropoda) In snails, a large muscleattached in the upper portion <strong>of</strong> the shell spire; used todraw the s<strong>of</strong>t parts into the shell.column n. [L. columna, column] 1. Any column-shaped structure.2. (CNID) The body. 3. (ECHINOD: Crinoidea) Segmentsthat makeup the stem.columnals n.pl. [L. columna, column] (ECHINOD: Crinoidea)The single row <strong>of</strong> superimposed, round or pentagonalskeletal stems.columnar a. [L. columna, column] Formed like a column.comarginal a. [L. cum, with; margo, edge] (MOLL: Bivalvia)Coinciding with the growth lines <strong>of</strong> the shell; concentric.comate a. [L. comatus, with long hair] 1. Having hair; hairy. 2.(ARTHRO: Insecta) Having hair on the upper surface.comb n. [A.S. camb, comb] 1. Any <strong>of</strong> various comb-like structures.2. (ARTHRO: Chelicerata) The pecten <strong>of</strong> scorpions. 3.(ARTHRO: Insecta) a. The strigil. b. The many brood cells orcocoons regularly arranged in the nests <strong>of</strong> many species <strong>of</strong>social wasps and bees. c. The pecten or pollen rake <strong>of</strong> honeybees.see combs. 4. (CTENO) see comb rows. 5. (ECHI-NOD: Crinoidea) In Comasteridae, the modified segments <strong>of</strong>the distal part <strong>of</strong> the lower pinnules. 6. (MOLL) The

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