Morula nodicostata
NameMorula nodicostata
Scientific NameMorula nodicostata
Common NameNodular Rock Snail
FamilyMuricidae
GenusMorula
Speciesnodicostata
Geographic DistributionIndo-Pacific region, including Hawaii, French Polynesia, and other Pacific islands.
Habitatintertidal
Shell Shapeconical
Average Size (mm)10-25
Identifying FeaturesDistinctive prominent, rounded, white nodules arranged spirally and axially, contrasting sharply with dark brown or black background coloration. Robust shell with a short siphonal canal.
Raritycommon
Author Citation(Pease, 1868)
Description
A small, robust marine gastropod shell, characterized by its conical to ovate-conical shape and highly sculptured surface. The shell features prominent, rounded, white nodules arranged in spiral rows, often giving it a beaded or knobby appearance. Dark brown or black coloration typically fills the depressions between these white nodules, creating a striking contrast. The spire is moderately elevated, and the aperture is relatively small with a short siphonal canal.
