Fig. 3
From: Capture silk scaffold production in the cribellar web spider
Scanning electron micrographs of the calamistrum combs in the spider N. albofasciata. a On the upper margin of the metatarsus (Mt) segment of the 4th leg, a specialized comb of bristles, called a calamistrum (arrows) is located. b The bristles (Br) are long, straight, and have a pointed end toward the tip. c Each bristle of the calamistrum is embedded in a cuticular socket (Sc). d The surface of the bristle is completely covered with longitudinal grooves (arrowheads). Scale bars indicate 200 μm (a) and 10 μm (b-d)