Thais nodosa
NameThais nodosa
Scientific NameThais nodosa
Common NameKnobby Thais, Nodose Rock Snail
FamilyMuricidae
GenusThais
Speciesnodosa
Geographic DistributionTropical West Atlantic, including the Caribbean Sea, Gulf of Mexico, and along the coast of Brazil.
Habitatintertidal
Shell Shapeglobose
Average Size (mm)30
Identifying FeaturesGlobose, nodulose shell; wide, ovate aperture; glossy white interior with characteristic dark brown/black columellar spots/streaks. The robust and thick-shelled appearance.
Raritycommon
Author CitationLinnaeus, 1758
Description
A robust, globose to ovate marine gastropod shell, characterized by a pale, off-white exterior with a distinctly nodulose or tuberculate surface. The spire is relatively low, and the body whorl is large. The aperture is wide and ovate, featuring a smooth, glossy white interior. A key identifying feature is the presence of prominent dark brown to black spots or streaks on the columellar side of the aperture. The outer lip is often slightly thickened.
