
Jacna abalone
NameJacna abalone
Scientific NameHaliotis jacnensis
Common NameJacna abalone
FamilyHaliotidae
GenusHaliotis
Speciesjacnensis
Geographic DistributionIndo-Pacific region, including the Philippines, Japan, and other parts of Southeast Asia.
Habitatsubtidal
Average Size (mm)Can reach up to 100-120 mm in length.
Identifying FeaturesHighly rugose (rough) exterior sculpture with prominent, often frilly or lamellar concentric growth lines and radial ribs. A distinct series of raised, tubular respiratory pores (tremata) along the left margin of the shell. The overall flattened, ear-like shape is characteristic of abalones.
Rarityrare
Author CitationReeve, 1846
Description
The Jacna abalone is a species of sea snail, a marine gastropod mollusk in the family Haliotidae. Its shell is characterized by a flattened, ear-like shape with a highly sculptured exterior featuring prominent, often frilly or lamellar concentric ridges and radial ribs. A distinctive row of raised, tubular respiratory pores is visible along one edge. The coloration is typically mottled with earthy tones, including creams, browns, and reddish hues.





