Macroschisma africanum
NameMacroschisma africanum
Scientific NameMacroschisma africanum
Common NameAfrican Keyhole Limpet
FamilyFissurellidae
GenusMacroschisma
Speciesafricanum
Geographic DistributionSouthern Africa (e.g., South Africa)
Habitatintertidal
Average Size (mm)20
Identifying FeaturesVery large, elongated, slit-like apical opening extending nearly the full length of the shell; flattened, elongated shell profile; fine concentric growth lines.
Raritycommon
Author CitationSowerby I, 1835
Description
Macroschisma africanum is a species of keyhole limpet belonging to the family Fissurellidae. It is characterized by its distinctive elongated, flattened shell and a very large, central apical opening that resembles a long slit, extending almost the entire length of the shell. The shell typically displays an off-white to pale cream base color, often adorned with faint reddish-brown or purplish-brown concentric growth lines and scattered flecks. This marine gastropod is found in the waters off Southern Africa, where it inhabits rocky intertidal and subtidal zones, primarily feeding on algae.
