FTP, identify these structures which open to the outside through spigots where the liquid silk is made solid, commonly found on spiders.
Only the Liphistius family has the maximum of four pairs of these in the adult, while members of the Palpimanidae have only one pair. Most adults have three pairs, with the anterior median pair being reduced to a cone known as the colulus or a plate known as the cribellum and all of them are conduits for a protein called fibroin. FTP, identify these structures which open to the outside through spigots where the liquid silk is made solid, commonly found on spiders.
Only the Liphistius family has the maximum of four pairs of these in the adult, while members of the Palpimanidae have only one pair.
spinnerets