
Nuttall's Hornmouth
NameNuttall's Hornmouth
Scientific NameCeratostoma nuttalli
Common NameNuttall's Hornmouth
FamilyMuricidae
GenusCeratostoma
Speciesnuttalli
Geographic DistributionEastern Pacific Ocean, ranging from central California (USA) south to Baja California (Mexico).
Habitatintertidal
Shell Shapefusiform
Average Size (mm)30
Identifying FeaturesKey features include prominent, often frilly or lamellar axial ribs, strong spiral sculpture, and a distinctive 'horn' or spine on the outer lip of the aperture (though this may be worn down in beach specimens). The overall robust, sculptured appearance and color banding are also characteristic.
Raritycommon
Author Citation(Conrad, 1837)
Description
A medium-sized predatory sea snail shell, characterized by its fusiform shape, prominent axial ribs, and often a spiny or horned aperture. The shell exhibits varied color patterns, typically shades of brown and white, and is commonly found in rocky intertidal and subtidal zones.





