noun
Japanese false cerith; Batillaria cumingii
A small marine snail found in Japanese waters; the name is a taxonomic designation.
干潟でホソウミニナを観察した。
I observed Japanese false ceriths on the tidal flat.
The Japanese name ホソウミニナ literally means 'thin sea snail'. The derivation is straightforward from the components 細 (thin), 海 (sea), and 蜷 (snail).