Costabieta horridaCostabieta horrida is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies. This species has three synonyms, two within the genus Rissiona and one within Costabieta.DistributionThis species occurs in the Red Sea, the Central and East Indian Ocean, the Western Pacific Ocean, off Malaysia and Indo-China.