Fissurella itapema
NameFissurella itapema
Scientific NameFissurella itapema
Common NameItapema Keyhole Limpet
FamilyFissurellidae
GenusFissurella
Speciesitapema
Geographic DistributionKnown from the South Atlantic, specifically along the coast of Brazil, particularly in the region of Santa Catarina (where Itapema is located).
Habitatintertidal
Shell Shapeconical
Average Size (mm)Shells typically range from 15 to 30 mm in length, with a height proportional to their conical shape.
Identifying FeaturesThe most distinctive feature is the apical keyhole-shaped foramen. Other key identifiers include the conical shell shape, strong radial ribbing, and its adherence to rocky substrates in intertidal environments. The specific color patterns and shell sculpture help differentiate it from other Fissurella species.
Raritycommon
Author CitationSimone & Cunha, 2014
Description
Fissurella itapema is a species of keyhole limpet, characterized by its conical, limpet-like shell with a distinctive apical opening (foramen). The shell exhibits prominent radial ribs and concentric growth lines, often appearing somewhat irregular due to its rocky habitat. The color patterns can vary, as seen in the image, ranging from greenish-brown to reddish-brown, often with lighter and darker bands, and may be partially covered by epibionts or algae, providing camouflage.
