Parhedyle cryptophthalmaParhedyle cryptophthalma is a species of sea slug, an acochlidian, a shell-less marine gastropod mollusc in the family Parhedylidae.DistributionThis species occurs in the Mediterranean Sea.EcologyParhedyle cryptophthalma is marine and is a mesopsammic species, in other words, these very small slugs live in the interstitial spaces of marine sands.