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, pl.


(ke-lis'ĭ-ră, -ĭ-rē),
One of the two anterior appendages of arachnids; in ticks and parasitic mites, the chelicerae are piercing and cutting structures, and constitute important feeding organs.
[G. chēlē, claw, + keras, horn]


n. pl. chelic·erae (-ə-rē′)
Either of the first pair of fanglike appendages near the mouth of an arachnid or a horseshoe crab, often modified for grasping and piercing.


one of a pair of grasping and piercing organs present in Arachnids and Horseshoe crabs.
References in periodicals archive ?
Similarly, duration and frequency of cheliceral tapping by spidermites was also significantly increased on whitefly nymph-infested leaves, even when the nymphs were no longer present, indicating again that palatability may have declined in response to whitefly feeding.
Chelicerae (length 65-73) with one tooth on each movable and fixed digit; both cheliceral setae similar in length (10), setiform, slightly barbed.
Chelicerae: Pale to deep orange; surface granulated with scattered, short and long setae; cheliceral furrow with three promarginal teeth, largest tooth medially; three retromarginal teeth, largest tooth situated proximally to fang, smallest distally.
This medium-sized, rather delicate salticid is unusual in having a wide multi-cusped (4-5 cusps) retromarginal cheliceral tooth (Figs.
Diagnosis: The habitus of the male is similar to Belippo cygniformis Wanless, 1978 from Ghana, but it may be easily distinguished from it and other congeners by the cheliceral dentition: this species has a toothless promargin and only two teeth on the retromargin, whereas all of the other species have many teeth on both cheliceral edges.
2, arrow), promarginal cheliceral rim with three teeth, no palpal femoral groove and no apophysis on male palpal patella, RTA present 4 3.
The description format follows Pinto-da-Rocha (1996), cheliceral setae were grouped according to Reddell & Cockendolpher (1995:fig.
Cheliceral setae long, setiform and barbed; cha (24-26) slightly longer than chb (16-20).
Chelicera slightly protruding, proximal article with dorsal and ventral crest, and dual cheliceral dentition.
Chelicerae with 3 or 4 prolateral and 2-4 retrolateral teeth on cheliceral furrow, uncommonly 3 or 2 teeth.