Distorsio anus, common name the common distorsio, is a species of medium-sized sea snail, a marine gastropod mollusk in the family Personidae, the Distortio snails.
The size of the shell varies between 1 1/3 to 4 inches.
These marine species are found in the Red Sea and in the Indo-Pacific (Tanzania, Madagascar, the Mascarene Basin, Mauritius)
Distorsios Anus shell. Family Ranellidae. They are gastropods. Often called the Common Distorsio. Its apex is deformed and sometimes broken off. Spiral rows of smooth tubercles and nodules cover all whorls. Apertural side almost covered by broad glossy shield with sharp edges. Its underlying tubercles and teeth show through. The shell's color is cream with brown spiral bands. This species is the largest of the Distorsios shells.
Super family: Tonnoidea
Species: D. anusBinomial name: Distorsio anus
One Distorsios Anus shell 1 1/2 to 2 1/4 inches ...... .75