Rare macro look at active spinnerets Harmonicon oiapoqueae Here you can see the spinnerets of a Dipluridae. The long paired structures carry many individual spigots that release separate silk filaments. Silk forms as a liquid protein inside the glands, moves through narrow ducts and exits each spigot as a thread that solidifies on contact with air. The coordinated movement of the spinnerets controls thickness, direction and layering of the silk. Harmonicon oiapoqueae is a Dipluridae from French