Montfortista oldhamiana
NameMontfortista oldhamiana
Scientific NameMontfortista oldhamiana
Common NameNone found
FamilyFissurellidae
GenusMontfortista
Speciesoldhamiana
Geographic DistributionIndo-Pacific region, including areas such as the Philippines and Japan.
Habitatintertidal
Shell Shapeconical
Average Size (mm)13
Identifying FeaturesKey identifying features include the apical fissure (keyhole-like opening), the irregular, somewhat ear-shaped profile, and the conical form. The exterior surface shows irregular growth lines and a somewhat rough texture. An internal callus is visible from the ventral aspect.
Raritycommon
Author Citation(Nevill & Nevill, 1869)
Description
A small, irregularly shaped shell belonging to the keyhole limpet family. The specimen is predominantly off-white to pale grey, with some areas showing brownish or yellowish tinges, possibly due to erosion or natural variation. It exhibits a characteristic apical opening (fissure) and a somewhat rough exterior texture with irregular growth lines. The interior surface, visible in one view, appears smoother and lighter, with an internal callus.
