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harvestman arachnid

Harvestman Arachnid

On the sides of the prosoma there are defensive glands called ozopores, which in Cyphophthalmi open on the tip of an elevated cone, the ozophore. The prosomal muscles attach to the endosternite, a horizontal sheet of connective tissue similar to cartilage that acts as an internal skeleton. In some harvestmen (Phalangium, Odiellus and Leiobunum) it contains calcium deposits. The endosternite is U-shaped, with the arms facing forward and embracing the ganglion above the esophagus.
• Chelicerae
The chelicerae consist of three segments, with the distal two forming a pincer, equipped with a row of teeth. The proximal segment is probably homologous to the coxa and trochanter of the pedipalp, the middle segment to the femur through the tarsus of the legs, and the distal segment to the apotele (the claw with its modifications).

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Keywords:#harvestman #arachnid
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Date added:Nov 15, 2017
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