Black-ribbed False Limpet
NameBlack-ribbed False Limpet
Scientific NameSiphonaria atra
Common NameBlack-ribbed False Limpet
FamilySiphonariidae
GenusSiphonaria
Speciesatra
Geographic DistributionIndo-Pacific region, including areas like Hawaii, Japan, the Philippines, Australia, and various Pacific islands. It is common in tropical and subtropical waters.
Habitatintertidal
Shell Shapeconical
Average Size (mm)15-30
Identifying FeaturesDistinctive dark radial ribs, white apex, and a low, conical limpet-like shape. Its classification as a 'false limpet' indicates it is a pulmonate gastropod, possessing a lung rather than gills, which is an internal anatomical feature not visible externally but defines its group.
Raritycommon
Author CitationQuoy & Gaimard, 1833
Description
A species of false limpet characterized by its low, conical, cap-like shell with prominent dark radial ribs extending from the apex to the margin. The apex is typically off-center and often appears lighter, sometimes white, as seen in the image. It is a pulmonate gastropod, meaning it breathes air, distinguishing it from true limpets.
