Fissurella angusta
NameFissurella angusta
Scientific NameFissurella angusta
Common NameNarrow Keyhole Limpet
FamilyFissurellidae
GenusFissurella
Speciesangusta
Geographic DistributionIndo-Pacific region, including areas such as the Philippines and Indonesia.
Habitatintertidal
Shell Shapeconical
Average Size (mm)20-40
Identifying FeaturesKey identifying features include its limpet-like shape with a narrow, oval apical foramen, strong radial ribbing, and the characteristic reddish-brown and white color pattern. The foramen's shape is particularly distinctive for the species.
Raritycommon
Author Citation(Gmelin, 1791)
Description
Fissurella angusta is a species of keyhole limpet, characterized by its conical, limpet-like shell with a distinctive, narrow, oval-shaped apical opening (foramen). The shell surface is sculptured with prominent radial ribs that extend from the apex to the margin, often giving the margin a crenulated or wavy appearance. The overall shape is typically oval to oblong.
