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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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190Maggenti and Gardnerment to which the chelicerae are attached.cheliceral boss (ARTHRO: Chelicerata) In Araneae when present,a tear-shaped or wedge-shaped process on the distalpart <strong>of</strong> the chelicera where it comes into contact with theclypeus.cheliceral gland (ARTHRO: Chelicerata) One <strong>of</strong> paired glands inthe dorsal part <strong>of</strong> the prosoma; the orifice is in the chelicerae.cheliceral groove (ARTHRO: Chelicerata) One <strong>of</strong> paired longitudinalgrooves in the dorsal surface <strong>of</strong> the infracapitulum,receiving and guiding the chelicera.cheliceral sheath (ARTHRO: Chelicerata) A paired membranoussheath that attaches the chelicera to the cheliceralframe so as to allow extension and retraction.cheliceral teeth (ARTHRO: Chelicerata) Serrations along theborders <strong>of</strong> the cheliceral groove.Chelicerata, chelicerates n.; n.pl. A subphylum <strong>of</strong> arthropodswithout antennae, divided into three classes: theMerostomata, or horseshoe crabs; the Arachnida, spiders,scorpions, mites and relatives; and the Pycnogonida, or seaspiders.cheliferous a. [Gr. chele, claw; L. ferein, to bear] Bearing orterminating in claws or chelae.cheliform a. [Gr. chele, claw; L. forma, shape] Pincherlike.cheliped n. [Gr. chele, claw; L. pes, foot] A claw-bearing appendage;forceps that bear at its tip a chela.cheloniform a. [Gr. chelon, tortoise; L. forma, shape] Turtleor tortoise-shaped; limpet-like.chelophores n.pl. [Gr. chele, claw; pherein, to bear] (ARTHRO:Chelicerata) Chelicerate first appendages <strong>of</strong> the arthropodclass Pycnogonida.chemiluminescence n. [Gr. chemeia, pert. chemistry; L. luminescere,to grow light] Enzymatic light production withoutincrease in temperature in the course <strong>of</strong> a chemical reaction;bioluminescence.chemoceptor see chemoreceptor

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