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In sexually-mature male spiders, the final segment of the pedipalp, the tarsus, develops a complicated structure (sometimes called the palpal bulb or palpal organ) that is used to transfer sperm to the female seminal receptacles during mating. The details of this structure vary considerably between different groups of spiders and are useful for ...
Pedipalp and leg of a female spider from the underside; the coxa of the pedipalp is heavily modified to form the maxilla. Segments or articles of the legs and pedipalps: Coxa (plural coxae): First leg segment, between body and trochanter; the coxa of the pedipalp is heavily modified to form the maxilla or endite
The cephalothorax, also called prosoma, is composed of two primary surfaces: a dorsal carapace and a ventral sternum.Most external appendages on the spider are attached to the cephalothorax, including the eyes, chelicerae and other mouthparts, pedipalps and legs.
Male Huishui dwarf spiders have unique genitalia, known as pedipalps, the study said. Pedipalps are the shorter front appendages that function both as sensory organs and reproductive organs.
Researchers identified two new tiny species in Uruguay and Brazil.
Palpal bulbs are believed to have evolved from the claws of the male pedipalp. Prior to the male's final moult, the bulb develops from cells at the base of where the claw would be. The transformation of claws to bulbs occurred before the evolution of all living spiders. [ 2 ]
A pedipalp is a type of mouthpart among arachnids. Palpi or pedipalpi can refer to: Pedipalpi, a subclade of Tetrapulmonata; Palpi (Lepidoptera mouthpart)
Pedipalp anatomy varies strongly with species, with configurations often conforming to a particular style of prey capture. The pedipalps of some genera such as Euphrynicus are extremely long, and free of spines until near the extreme distal end of the appendage.
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