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The first, or anterior, of the five pairs of leg-like appendages are not "actual" legs, but pedipalps, and they have only five segments each. The pedipalps of the Solifugae function partly as sense organs similar to insects' antennae, and partly in locomotion, feeding, and fighting. In normal locomotion, they do not quite touch the ground, but ...
Mycteroptidae are a family of eurypterids, a group of extinct chelicerate arthropods commonly known as "sea scorpions". The family is one of three families contained in the superfamily Mycteropoidea (along with Hibbertopteridae and Drepanopteridae), which in turn is one of four superfamilies classified as part of the suborder Stylonurina.
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 ...
The common name scorpion spider is derived from its distinctive flat back and carapace orange colouring. [2] This colouring is evident around the mouthpiece and on the anterior aspects of the legs. [2] These similar features of the genus Platyoides in comparison to a scorpion is often why this genus is referred to as the scorpion spider. [2]
The specimen also had “large” ovigers, which are a male sea spider’s egg-carrying organ, according to the study. Sea spiders mate using “genital pores in their legs,” aquarium experts said.
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.
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 ...
These appendages were generally walking legs that were cylindrical in shape and were covered in spines in some species. In most lineages, the limbs tended to get larger the farther back they were. In the Eurypterina suborder , the larger of the two eurypterid suborders, the sixth pair of appendages was also modified into a swimming paddle to ...