Phorcus articulatus

Phorcus articulatus is a marine gastropod characterized by its heavy, thick shell that ranges in height from 15 mm to 28 mm and a diameter of 21 mm to 24 mm. The shell exhibits an elongate-conical shape and is typically cinereous greenish or whitish, adorned with spirally arranged bands of alternating white and black purplish or red squarish spots. The adult shell is imperforate, while immature specimens are generally perforate. The spire is elevated, and the shell contains about six whorls, with the last whorl being constricted and concave below the suture. The aperture is smaller and less oblique compared to similar species like Phorcus turbinatus. This species is found in European waters, particularly within the Greek, Portuguese, and Spanish Exclusive Economic Zones, primarily inhabiting the Mediterranean Sea. It is typically found at depths shallower than 40 meters, with most occurrences recorded at depths less than 20 meters. Phorcus articulatus is a benthic species, often residing on rocky substrates. Reproduction involves a typical life cycle for members of the order Archaeogastropoda, where embryos develop into planktonic trocophore larvae before transitioning to juvenile veligers and eventually adult snails. Encounters with this species during dives may reveal them resting on rocks or substrates, where their distinct shell pattern can aid in identification. The conservation status of Phorcus articulatus has not been evaluated by the IUCN.