Whorls moderately convex; suture thin and shallow; the subsutural row bears the largest tubercles; the last whorl has a cancellate appearance; often, the labial margin is thickened; labial teeth absent or obsolete. Five rows of granules on average whorl, instead of 3 in cimex. Occasionally, banded specimens occur. – Above: subadult specimen from 65m deep, Bozcaada island, Çanakkale, W. Marmara, NW. Turkey. 3,1mm.

Still remains the task of uncovering why this little shell, described after a specimen from the northern Adriatic, bears the name of a three-bodied giant from Tartessos area. Brusina, who worked, 23 years after Nardo, on Chiereghini’s manuscript, asserts that the name refers to the ancient city of Gerione; but, as this town was in Puglia, far from Venice lagoon, which is the locality of Chiereghini’s studies, this explanation does not seem very conclusive.