Density and distribution pattern of Polinices sp. in Kuala Cangkoi and Ujong Pancu beach, IndonesiaChitra Octavina, Nadia Zahara, Rania Feranita Fachri and Muntazir MuntazirBIO Web Conf., 156 (2025) 01006DOI: https://doi.org/10.1051/bioconf/202515601006