Emperor's Slit Shell
NameEmperor's Slit Shell
Scientific NameMikadotrochus hirasei
Common NameEmperor's Slit Shell
FamilyPleurotomariidae
GenusMikadotrochus
Specieshirasei
Geographic DistributionIndo-Pacific, primarily found around Japan, Taiwan, and the Philippines.
Shell Shapeconical
Average Size (mm)Typically ranges from 100 mm to 200 mm in height.
Identifying FeaturesThe most prominent identifying feature is the deep, narrow slit (selenizone) on the outer lip of the aperture, which extends for a significant portion of the last whorl. Other features include its large size, conical shape, strong spiral cords, and axial ribs, giving it a beaded or granular texture, especially on the upper whorls. The interior of the shell is pearly (nacreous).
Dietdetritivore
Rarityrare
Author Citation(Pilsbry, 1903)
Description
A large, highly prized deep-water sea snail shell, characterized by its distinctive slit on the outer lip and intricate surface sculpture. The shell exhibits striking orange and white color patterns and a conical shape.
