Indothais gradata
NameIndothais gradata
Scientific NameIndothais gradata
Common NameGradate Rock Shell
FamilyMuricidae
GenusIndothais
Speciesgradata
Geographic DistributionIndo-Pacific region, including the Indian Ocean and Western Pacific, specifically found in areas like India, Sri Lanka, Thailand, Malaysia, Indonesia, and parts of Australia.
Habitatintertidal
Shell Shapeconical
Average Size (mm)25-50
Identifying FeaturesDistinctive strong spiral sculpture and axial ribs/nodules, giving the shell a rugged texture. The conical shape with a moderately high spire and the characteristic dark banded color pattern on a light background are key identifiers. The aperture is typically ovate, and the siphonal canal is short. Often found encrusted with other organisms like barnacles.
Raritycommon
Author Citation(Jonas, 1846)
Description
A robust, medium-sized marine gastropod shell, Indothais gradata, is depicted in its natural habitat, a rocky intertidal zone. The shell is partially encrusted with small barnacles and surrounded by numerous other barnacles and dark mussels, indicating its preference for hard substrates in wave-exposed areas. Its distinctive banded coloration and sculptured surface are clearly visible.
