Bishop's pen snail shell
The mitre shell of the pen snail is a marine snail belonging to the family Callichthyidae in the subclass Gastropoda. The shell is thick, typically in the shape of a bullet, and slightly resembles a bishop's crown, hence the English name bishop's crown snail. Pen snails are common in the Indo Pacific region, inhabiting shallow sandy bottoms. The largest type of bishop's pen snail is 10 centimeters long, with a white shell surface and red yellow patches. Shell white, spiral tower round, shallow stitching; There are red spots on the surface of the shell, with a brilliant color.
