noun
Inversidens brandti (freshwater mussel)
Scientific name for a specific species of freshwater mussel. Typically used in biological contexts.
オバエボシガイは日本の淡水に生息する二枚貝の一種です。
Inversidens brandti is a species of freshwater bivalve that inhabits Japanese freshwaters.
The name likely derives from the shape resembling an eboshi (a traditional hat) and the association with an old woman (姥). The exact origin is uncertain.