Tribulus planospira
Tribulus planospira is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.[1] As of 2019[update], it is the only species in the genus Tribulus included in the World Register of Marine Species.[2] Tribulus has previously been considered a subgenus of the genera Murex, Purpura, and Thais.[2][3] DescriptionThe spire is depressed. The whorls are simple, the body whorl ventricose. The aperture is wide. The columella is arcuated. The inner lip is excavated, corrugated at the fore part. [4] References
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