Fissurella costata
NameFissurella costata
Scientific NameFissurella costata
Common NameCostate Keyhole Limpet
FamilyFissurellidae
GenusFissurella
Speciescostata
Geographic DistributionPacific coast of South America, particularly Chile and Peru.
Habitatintertidal
Shell Shapeconical
Average Size (mm)40
Identifying FeaturesConical, limpet-like shell with a distinctive apical keyhole (foramen). Strong, radiating, often nodulose ribs (costae) are prominent on the shell surface.
Raritycommon
Author CitationLesson, 1830
Description
A species of keyhole limpet (family Fissurellidae) characterized by its conical, limpet-like shell and prominent, radiating, often nodulose ribs. The shell features a distinctive apical opening (foramen or keyhole). Its coloration typically ranges from light brown to yellowish-tan, often with darker brown or reddish-brown patterns radiating from the apex.
