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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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630Maggenti and Gardnerommatoid n. [Gr. omma, eye; eidos, form] (ARTHRO: Chelicerata)In some Arachnida, a light colored spot on the posteriorbody segment.ommatophore n. [Gr. omma, eye; pherein, to bear] (MOLL:Gastropoda) A movable process bearing an eye, as insnails; may be fused with the tentacles.ommochrome, ommatochrome n. [Gr. omma, eye; chroma,color] A group <strong>of</strong> pigments, products <strong>of</strong> tryptophane metabolism,found in eyes and epidermis <strong>of</strong> certain invertebrates;it is apparently not involved in the visual process.omnivorous a. [L. omnis, all; vorare, to devour] Capable <strong>of</strong>obtaining nourishment from both animal and plant tissue.omphalian a. [Gr. omphalos, the navel] (ARTHRO: Insecta)Referring to the orifice (excluding ostiole) <strong>of</strong> the metathoracicscent gland <strong>of</strong> Heteroptera as median and unpaired.omphalium n. see diastomian.omphalous a. [Gr. omphalos, the navel] (MOLL: Gastropoda)Having a shell with an umbilicus.onchial plate (NEMATA: Adenophorea) In Enoplida, the basalplate <strong>of</strong> the onchium.onchiophore see odontophoreonchiostyle see odontostyleonchium n.; pl. onchia [Gr. onkinos, hook] (NEMATA)Stomatal armature, generally in the form <strong>of</strong> a tooth orteeth originating from the posterior stoma (esophastome).see odontium, esophastome.onchomiracidium n. [Gr. onkinos, hook; merakidion, youth](PLATY: Trematoda) 1. A term for an embryo in the egg. 2.The ciliated larva <strong>of</strong> a monogenetic trematode.onchosphere, oncosphere n. [Gr. onkinos, hook; sphaira,ball] (PLATY: Cestoda) The shelled embryo; a hexacanth;the first larval stage.oncogenic a. [Gr. onkos, swelling; gennaein, to produce] Tumorcausing.oncophysis n. [Gr. onkos, swelling; physis, growth] (ARTHRO:Chelicerata) Any extension <strong>of</strong> an arthrodial membrane,usually in the form <strong>of</strong> a more or less hyaline intumescence.

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