Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology 851static a. [Gr. statikos, to cause to stand] Pertaining to rest orequilibrium. see dynamic.statis organ see statocyststatis sense The sense of balance or maintenance in the air orwater.statistical method Special mathematical methods for the elucidationof quantitative variations affected by a multiplicityof factors.statoblast n. [Gr. statos, fixed; blastos, bud] (BRYO: Phylactolaemata)A sessile or free, ovoid or discoid chitinized bud,with large yolky cells and organized germinal tissue, thatgive rise to polypides; resting buds; winter eggs. seefloatoblast.statocone n.; pl. -ia [Gr. statos, fixed; koni, dust] A minutecalcareous granule in a statocyst.statocyst n. [Gr. statos, fixed; kystis, bladder] An organ ofbalance found in many invertebrates, variable in structurefrom an open canal, vesicle, or closed chambers composedof one to many cells (lithocytes), that contains a concretionof granules of sand, lime, diatom shells or quartz grains(statolith), or capsules of ciliated cells enclosing a fluid withone or more statoliths suspended within; otocyst.statocyte see lithocytestatolith n. [Gr. statos, fixed; lithos, stone] A movable concretionof granules of sand, lime, diatom shells, or quartzgrains contained in a statocyst, that functions in equilibrium;lithite.statorhabd see rhopaliumstauractine a. [Gr. stauros, cross; aktis, ray] (PORIF) A tetractinalspicule with all four rays in a single plane.stegasimous a. [Gr. stege, roof] (ARTHRO: Chelicerata) InAcari, having the prodorsal sclerite project over the chelicerae.see astegasimous.stellate a. [L. stella, a star] Star-shaped; resembling the raysof a star.stellate cells Stelliform plasmatocyte-like cells often adheringto internal tissues. see plasmatocyte.