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Solifugae is an order of arachnids known variously as solifuges, sun spiders, camel spiders, and wind scorpions. The order includes more than 1,000 described species in about 147 genera . Despite the common names, they are neither true scorpions (order Scorpiones) nor true spiders (order Araneae ).
The limbs themselves may be simple tactile organs outwardly resembling the legs, as in spiders, or chelate weapons (pincers) of great size, as in scorpions. The pedipalps of Solifugae are covered in setae, but have not been studied in detail. [1] Comparative studies of pedipalpal morphology may suggest that leg-like pedipalps are primitive in ...
In Solifugae, the palps are quite leg-like, so that these animals appear to have ten legs. The larvae of mites and Ricinulei have only six legs; a fourth pair usually appears when they moult into nymphs. However, mites are variable: as well as eight, there are adult mites with six or, like in Eriophyoidea, even four legs.
They are the counterpart of pectines in scorpions, and modified walking limbs in the uropygids and amblypygids as well as the pedipalps in spiders and other arachnids. [ 1 ] [ 2 ] Generally, solifuges have 5 pairs of malleoli on the ventral surface of the fourth pair of legs. malleoli are usually larger in males. [ 3 ]
Crab spiders are so named because of their first two pairs of legs, ... spider · Acari · Opiliones · pseudoscorpion · scorpion · Solifugae · sea spider ...
In basal chelicerates, the pedipalps are unspecialized and subequal to the posterior pairs of walking legs. [10] However, in sea spider and arachnids, the pedipalps are more or less specialized for sensory [12] or prey-catching function [10] – for example scorpions have pincers [20] and male spiders have bulbous tips that act as syringes to ...
The first pair of legs are 11-segmented, the second and third pairs seven-segmented and the fourth pair eight-segmented. [ 8 ] [ 9 ] The family Prokoeneniidae have three pairs of lung-sacs on the fourth, fifth and sixth abdominal segments, although these are not true book lungs as there is no trace of the characteristic leaflike lamellae which ...
The fourth pair of legs are the longest and strongest and carry white structures called racket organs - the purpose of which is not known. [1] The most distinctive feature of Solifugae is their large chelicerae, which are longer than the prosoma. Each of the two chelicerae are composed of two articles forming a powerful pincer; each article ...