Haliotis unilateralis
NameHaliotis unilateralis
Scientific NameHaliotis unilateralis
Common NameUnilateral Abalone
FamilyHaliotidae
GenusHaliotis
Speciesunilateralis
Geographic DistributionIndo-Pacific region, including areas around Japan, Taiwan, and the Philippines.
Habitatintertidal
Average Size (mm)20 (observed specimen). The species typically grows up to 50 mm in length.
Identifying FeaturesDistinctive ear-shaped shell; a prominent row of 4-7 open respiratory pores along the left margin (4-5 visible in this specimen); rough, irregular, and often lumpy sculpture on the exterior surface; relatively small size compared to many other abalone species.
Author CitationSowerby II, 1884
Description
A small, flattened abalone shell, approximately 20 mm in length, characterized by its ear-shaped (auriform) form and a row of open respiratory pores along the margin. The exterior surface is rough and irregularly sculptured, appearing pale yellowish-white or off-white, possibly due to weathering. This specimen is likely a juvenile or a smaller individual of the species.
