Stylommatophora

suborder of molluscs Stylommatophora (Stylommatophora) is an order comprising closely related families of organisms. It contains 42 families with 260 known species. Key family groups include Achatinellidae, Achatinidae, Agriolimacidae, Ariolimacidae, Arionidae, and Azecidae. Among its members, 49 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Gastropoda (Gastropoda).