noun
cleft-fronted bait crab; shore crab
Refers to the crab species Guinusia dentipes, commonly called cleft-fronted bait crab or shore crab. Used in biological and fishing contexts.
磯でショウジンガニを見つけた。
I found a shore crab on the rocky shore.
The name likely derives from 精進 (shōjin, 'devotion' or 'abstinence') and 蟹 (kani, 'crab'), but the exact origin is uncertain.