Clypeomorus batillariaeformis, common name : the necklace or channeled cerith, is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.
The spiraled shell can vary between 8 mm and 30 mm in size.
The distribution of Cerithium moniliferum includes the Indo-West Pacific.[1] along Japan, the Solomons, the Fiji Islands, Heron Island, Australia, Indonesia[1] and the Philippines; in the Indian Ocean along Madagascar[1] and the Mascarene Basin and in the Red Sea[1]
These animals form large groups as the tide recedes. Feeding on beach rock at a specific height above average low tide level, the snails slowly move about in clusters, conserving the moisture that allows them to respire out of water.[2]
Parasites of Clypeomorus batillariaeformis include Lobatostoma manteri.[3] [4]