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Adj.1.cheliceral - of or relating to or resembling chelicerae
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(2014) examined visual acuity in the pterygotid Acutiramus cummingsi and suggested that with its poor vision and cheliceral morphology (see Laub et al.
Based on diagnostic characteristics in the dichotomous key provided by Knee et al (1) of existing peritremes, distally attenuated chelicerae, without prominent proximal inflation, and minute cheliceral digits, the mite was determined to be Ptilonyssus (Fig 1b).
Cheliceral furrow with 2 anterior and 4 posterior teeth, the two median posterior teeth fused; with 5 long bristles at posterior base of fang (Fig.
Spiders in the Family Theraphosidae are distinguished from other spiders by the presence of two pair of booklungs; cheliceral fangs open paraxial; maxillae and labial cuspules present; distinct lobe on the anterior maxillae; two pairs of spinnerets; posterior lateral spinnerets are digitiform (finger-like); eight eyes in two close rectangular rows on a small anterior tubercle on the carapace; the legs and body are hirsute (hairy) and the tarsi (feet) are scopulated (padded) with retractable claw tufts (Raven, 1985).
The terminology of the cheliceral rallum ("flagellum") is adopted from Judson (2007b).
Copulatory mechanism in Holocnemus pluchei and Pholcus opilionoides, with notes on male cheliceral apophyses and stridulatory organs in Pholcidae (Araneae).
Key to the sub orders, families and genera: 1 With dentate faces of cheliceral digits directed externally (laterally), presence of a well developed hypostome provided ventrally with re-curved teeth; with lateral stigmatal openings behind coxae-IV or laterally above coxae II-III; prosoma completely fused; no trace of segmentation to the abdominal section; behind the legs size large, possession of true Haller's organ on the I pair of legs..........................................sub order Ixodida.