Siratus cailletti
Siratus cailletti, common name Caillet's murex, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Several sources write the name of the species as Siratus cailleti.
Description
The size of an adult shell varies between 50 mm and 90 mm. with about half that length being the species' rather long siphonal canal.A rare 'two-tailed' specimen of Siratus cailletti This oddity occurs when the siphonal canal associated with the previous varix fails to break away.