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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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Xxanthic a. [Gr. xanthos, yellow] Yellowish in color.xanthophyll n. [Gr. xanthos, yellow; phyllon, leaf] An oxidisedderivative <strong>of</strong> carotene found in the blood <strong>of</strong> some planteating insects.xanthopterin, xanthopterine (ARTHRO: Insecta) A yellowpteridine pigment <strong>of</strong> some insects.X-chromosomes In most dioecious diploid organisms, sexchromosomes <strong>of</strong> which there are a pair in the female, butonly one in the male.xenagones n.pl. [Gr. xenos, guest; agein, to lead] Substancesproduced by parasites that act upon the host.xenic a. [Gr. xenos, guest] The rearing <strong>of</strong> individuals <strong>of</strong> onespecies together with an unknown number <strong>of</strong> species <strong>of</strong>other organisms. see axenic, polyxenic, synxenic, trixenic.xenobiosis n. [Gr. xenos, guest; bios, life] (ARTHRO: Insecta)A form <strong>of</strong> relation in which one species lives in and amongthe nests <strong>of</strong> another species, obtaining food from them byregurgitation or other means, but keeping their own broodseparate.xenoecic a. [Gr. xenos, guest; oikos, house] Living in anabandoned shell <strong>of</strong> an unrelated species.xenogamy see cross-fertilizationxenogenesis see heterogenesisxenomone see allelochemicxenomorphism n. [Gr. xenos, stranger; morphe, form] (MOLL:Bivalvia) Sculpture in the umbonal region <strong>of</strong> the unattachedvalve that resembles the substratum on which the attachedvalve was fixed. xenomorphic a.xenoparasite n. [Gr. xenos, guest; para, beside; sitos, sit] Anecosite that becomes pathogenic due to a weakened resistanceon the part <strong>of</strong> its host.

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