Tonsured monk like appearance

Sea Monk

This enigmatic being is described as having an uncanny resemblance to a human monk or bishop, complete with a tonsured head, scaly skin resembling a habit, and fin-like appendages that could be mistaken for robed arms.

Tsuchigumo

often taking the form of a warrior monk

Umibōzu

Its appearance is typically marked by a large, round head resembling that of a Buddhist monk, hence its name which translates to 'sea bonze' or 'sea monk.'