Swimming predator of the photic zone.
Synonym: primitia.
Spire not strongly tilted relative to the plane of coiling, less elevated than the last whorl, and devoid of ornamentation; it consists of about 2,5 whorls separated from each other by a deep suture. – 1m deep, uvala Stari Trogir, Sevid area, Split-Dalmatia Comitat, W. Croatia. Original picture provided by V. Cetinić-Koća (HR) – (CC BY-NC-SA).
