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The banded dune snail (originally classified as Helminthoglypta walkeriana) was listed as endangered in 1994. At the time, it was considered to be a single species composed of two subspecies that are now recognized as full species: H. walkeriana (Morro shoulderband snail) and H. morroensis (Chorro shoulderband snail). A 2006 review of the species noted that many of the threats at the time of listing had been reduced and that populations were stable or increasing, and recommended that Morro shoulderband snail be downlisted to threatened and that Chorro shoulderband snail be delisted. We are currently conducting a status review for each of these species to consider new information and assess any changes since the 2006 review and provide an updated analysis for any proposed status change.