Deltoid Rock Shell
NameDeltoid Rock Shell
Scientific NameMorula deltoidea
Common NameDeltoid Rock Shell
FamilyMuricidae
GenusMorula
Speciesdeltoidea
Geographic DistributionIndo-Pacific region, including areas such as the Philippines, Indonesia, and other tropical Pacific islands.
Habitatintertidal
Shell Shapeconical
Average Size (mm)15-30
Identifying FeaturesStrong, nodulose axial ribs (varices) creating an angular profile; distinctive white/cream and reddish-brown banded/blotched pattern; relatively small size; ovate, white aperture.
Raritycommon
Author Citation(Link, 1807)
Description
A small, robust marine gastropod shell, typically turbinate to biconical in shape. It features a moderately elevated spire and a wide body whorl, adorned with strong, nodulose axial ribs (varices) that give it a somewhat angular or 'deltoid' profile. The shell exhibits a striking color pattern of a white or cream background overlaid with broad, irregular reddish-brown to dark brown spiral bands and blotches. The aperture is ovate and white internally.
