Turritella declivis
Turritella declivis is a species of sea snail, a marine gastropod mollusk in the family Turritellidae.
Description
The shell can reach a maximum length of 100 mm, though it typically measures less than 65 mm.The shell is long and slender, with whorls that are flattened or slightly concave, giving them an inwardly hollowed appearance. The base of the body whorl is angular, and the aperture is small, slightly flaring at the base. The surface is marked by fine, curved axial growth lines that fade on the lower part of each whorl. There is no spiral sculpture present. The outer lip is thin and often shows signs of damage.
The shell is cream-colored, featuring a broad brown spiral band around the mid-whorl. In some specimens, the shell surface may be etched, causing the coloration to appear less distinct. Juveniles often display brown spots just below the suture.