Lewis's Moon Snail
NameLewis's Moon Snail
Scientific NameEuspira lewisii
Common NameLewis's Moon Snail
FamilyNaticidae
GenusEuspira
Specieslewisii
Geographic DistributionPacific coast of North America, ranging from Alaska south to Baja California, Mexico.
Habitatintertidal
Shell Shapeglobose
Average Size (mm)130
Identifying FeaturesDistinguished by its exceptionally large, expansive foot that can completely engulf its shell, allowing it to burrow rapidly. It has two short, pointed tentacles and a prominent siphon. The shell is smooth, globose, and relatively low-spired. It is also known for drilling a characteristic countersunk hole into the shells of its prey.
Raritycommon
Author Citation(Gould, 1847)
Description
A large marine gastropod, Lewis's Moon Snail is characterized by its massive, fleshy foot that can expand to envelop its entire shell, as seen in the image. The foot is pale pinkish-tan with a finely wrinkled texture, allowing the snail to glide across and burrow into sandy substrates. It possesses two short, pointed tentacles and a prominent siphon extending from its anterior end. The shell, partially visible, appears globose and pale yellowish-tan.
