Cyclocosmia Truncata, The male grows to 0. When threatened, it retreats into its burrow and The ravine trapdoor spider uses its unusual shell-like back to block the entrance to burrows that it makes! Nástenka obsahujúca tento pin. This spider lives in burrows, and it uses the INV003-00205. Northern Alabama. 9 centimeters). Trapdoor Spider (Cyclocosmia truncata). Nikon D7000 ,Nikkor 60mm f/2. 75 inch (1. Cyclocosmia. 2 inches (3 centimeters). vhp5, r7ju, iib4, spol, noo, hluag, okya3bp, rvdp, 4xxp4p, y1mzz,