Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

6Maggenti and Gardnercore of nonlaminated calcite, with sheath laminae usuallystrongly deflected toward the zoarial surface as spines;usually larger than paurostyle. 2. (PORIF) A monactinal spiculecovered with thorny processes.acanthozooid n. [Gr. akantha, thorn, spine; zoon, animal; eidos,form] (BRYO) A specialized zooid that secretes smalltubules that project as spines above the colony's surface.Acari n. [Gr. akari, mite or tick] (ARTHRO: Chelicerata) Subclassof the most diverse and species-rich group of arachnidscontaining the mites and ticks; formerly the orderAcarina.acariasis n. [Gr. akari, mite or tick; -iasis, diseased condition](ARTHRO: Chelicerata) Infestation with ticks or mites, orany diseased condition resulting therefrom.Acarina see Acariacarinarium n.; pl. -aria [Gr. akari, mite or tick; L. -arium,place for] 1. (ARTHRO: Chelicerata) Any surface or anatomicalfeature, enclosed or not, internal or external, thatregularly serves as an abode for mites. 2. (ARTHRO: Insecta)In Hymenoptera, variously placed and constructedintegumental cavities that serve as abodes for mites incertain eumenine wasps; originally defined as the enclosedacarid chambers of xylocopid bees.acarocecidium n.; pl. -ia [L. akari, mite or tick; Gr. kekis,gallnut] (ARTHRO: Chelicerata) Any plant gall caused by amite.acarology n. [Gr. akari, mite or tick; logos, discourse] Thatbranch of zoology that studies mites and ticks.acarophily n. [Gr. akari, mite or tick; philos, loving] Symbiosisof mites and plants.acaryote see akaryoteacaudal, acaudate, ecaudate a. [Gr. a, without; L. cauda,tail] Without a tail.acceleration n. [L. acceleratare, to hasten to] The speeding upof a development so that a feature appears earlier in theontogeny of a descendant than in an ancestor.