Diodora alta
NameDiodora alta
Scientific NameDiodora alta
Common NameHigh keyhole limpet
FamilyFissurellidae
GenusDiodora
Speciesalta
Geographic DistributionWestern Atlantic, including the Caribbean Sea, Gulf of Mexico, and parts of the southeastern United States.
Habitatsubtidal
Shell Shapeconical
Average Size (mm)5.5
Identifying FeaturesSmall size, high conical profile, prominent and numerous radial ribs, and a distinct oval apical foramen. The shell margin is often crenulated due to the radial ribs.
Raritycommon
Author Citation(C. B. Adams, 1852)
Description
A small, conical keyhole limpet shell, characterized by its elevated profile and distinct apical opening (foramen). The shell surface is sculptured with numerous prominent radial ribs, often giving it a somewhat rough or corrugated appearance. Concentric growth lines may also be visible, intersecting the radial ribs.
