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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> 857reduced to small projections from the spherical surface.sterrula n. [Gr. sterrhos, solid] (CNID: Anthozoa) A solid freeswimminglarva <strong>of</strong> Alcyonaria; stereoblastula.stethidium n. [Gr. stethos, breast] 1. (ARTHRO: Chelicerata) InAcari, the nonsclerotized prodorsum. 2. (ARTHRO: Insecta)The thorax and its appendages.stethosoma n. [Gr. stethos, breast; soma, body] (ARTHRO:Chelicerata) In Acari, that part <strong>of</strong> the body from the circumcapitularfurrow to the disjugal furrow; prosoma withoutthe gnathosoma.Stewart's organs (ECHINOD: Echinoidea) In cidaroids,coelomic pouches associated with Aristotle's lantern, functioningfor interchange <strong>of</strong> gases.stichic a. [Gr. stichos, row] Pertaining to a row parallel to thelongitudinal axis.stichocyte n. [Gr. stichos, row; kytos, container] (NEMATA:Adenophorea) An individual cell <strong>of</strong> a stichosome.stichosome n. [Gr. stichos, row; soma, body] (NEMATA: Adenophorea)A longitudinal series <strong>of</strong> cells (stichocytes) thatform the posterior esophageal glands.sticklac n. [A.S. sticca, stick; Skr. laksa, lac] (ARTHRO: Insecta)Branches or twigs covered with the dried lac <strong>of</strong> scaleinsects. see lac.stigma n.; pl. stigmata [Gr. stigma, mark] 1. A spiracle orbreathing pore. 2. (ARTHRO: Chelicerata) In Acari, a scleritesurrounding a spiracle. 3. (ARTHRO: Insecta) a. A coloredwing spot. see monostigmatous. b. In Odonata, a tickening<strong>of</strong> the wing membrane along the costal border nearthe apex. c. In Diptera, An apodeme at the base <strong>of</strong> theventral surface <strong>of</strong> the postgenital lobe <strong>of</strong> female mosquitoes;basal median (longitudinal) apodeme; a sclerite surroundinga spiracle on a maggot. 4. (PLATY: Trematoda) InSchistosomatoidea, an operculum-like area <strong>of</strong> an eggshellthrough which the miracidium hatches.stigmal vein (ARTHRO: Insecta) A short vein extending posteriorlyfrom the costal margin <strong>of</strong> the wing; stigma.stigmatal field (ARTHRO: Insecta) An area around the spiracles

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