n.1.(Zool.) A comblike structure on the metatarsus of the hind legs of certain spiders (Ciniflonidæ), used to curl certain fibers in the construction of their webs.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
examples are the superfamily Araneoidea, and the Oval Calamistrum clade
Short calamistrum represented by a few curved and flattened setae on raised keel.
Labium and sternum, calamistrum and spermathecae are as shown in Figs.
Metatarsus IV with a single row of setae making up the calamistrum (about half the length of the metatarsus IV), calamistrum of male more or less reduced.
Four 3rd instar spiderlings were observed under the dissecting microscope to check for the presence of the cribellar plate and calamistrum.
8), though the cribellar plate and calamistrum were already present in 3rd instar spiderlings.
Some anatomical aspects of Hypochilus thorelli with special reference to the calamistrum and cribellum.
Calamistrum short, less than 0.25 x length of metatarsus, in 2nd proximal quarter of metatarsus IV.