Medusafissurella dubia
NameMedusafissurella dubia
Scientific NameMedusafissurella dubia
Common NameDubious Keyhole Limpet
FamilyFissurellidae
GenusMedusafissurella
Speciesdubia
Geographic DistributionIndo-Pacific region, including the Red Sea, Philippines, and Indonesia.
Habitatintertidal
Average Size (mm)20
Identifying FeaturesOval and depressed shell profile; prominent radial ribbing; distinct central or subcentral keyhole-like foramen; mottled brown and cream coloration.
Raritycommon
Author Citation(Reeve, 1849)
Description
A small to medium-sized keyhole limpet shell, characterized by its oval and depressed shape, featuring a prominent central or subcentral foramen (keyhole-like opening). The shell surface is sculptured with strong radial ribs that extend from the apex to the margin, often intersected by finer concentric growth lines. Its coloration is typically mottled with shades of brown, tan, and cream, frequently displaying darker radial bands or blotches.
