Montfortia subemarginata
NameMontfortia subemarginata
Scientific NameMontfortia subemarginata
Common NameSubemarginate Keyhole Limpet
FamilyFissurellidae
GenusMontfortia
Speciessubemarginata
Geographic DistributionIndo-Pacific region, including areas such as the Philippines, Indonesia, and other tropical Pacific islands.
Habitatintertidal
Shell Shapeconical
Average Size (mm)10-25
Identifying FeaturesStrong, well-defined radial ribs; cap-like, conical shape; creamy-white coloration with distinctive reddish-brown blotches; and a crenulated shell margin. While not visible in this dorsal view, species in this genus typically possess an apical foramen (keyhole opening).
Raritycommon
Author Citation(Blainville, 1819)
Description
A small, cap-shaped keyhole limpet shell characterized by prominent radial ribs and a creamy white to yellowish background color, often adorned with irregular reddish-brown blotches or streaks. The shell exhibits a conical profile and a somewhat irregular or crenulated margin corresponding to the ribs.
