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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 ?
6A-B) on the fixed and free rami of the chelicera (Huxley and Salter 1859; Clarke and Ruedemann 1912; Miller 2007a).
Each chelicera has one curved terminal denticle, one primary denticle, and intermediate and smaller denticles in between, for a total of approximately 25 denticles.
Ventrianal shield vase shaped; chelicera fixed digit with 2 sub apical teeth; Setae r3 less than R1 in length .
Ventrianal shield ovoid; chelicera fixed digit with 3 sub apical teeth; setae r3 = R1 in length .
Using the methods of Muma (1951), Brookhart & Muma (1981, 1987), Muma & Brookhart (1988), and Brookhart & Cushing (2004), we measured total length; length ofpalpus, leg I, leg IV; length and width of chelicera and propeltidium; width of base of fixed finger; and length and width of female genital operculum using Spot Basic [TM] with an Olympus SZX12 microscope at 25X magnification.
Chelicera 23 long, movable digit without a tooth, fixed digit with 2 teeth (Fig.
Chelicera 150 long; terminating in a claw; dorsal and ventral sides with lobes; with one dorsolateral simple seta (Fig.
Chelicera slightly protruding, proximal article with dorsal and ventral crest, and dual cheliceral dentition.