Critically Endangered
Plicate rocksnail
Leptoxis plicata
Plicate rocksnail is a gastropod in the family Pleuroceridae — Leptoxis plicata, recorded as Critically Endangered.
Appearance
The plicate rocksnail is a pleurocerid snail with a shell that grows to about 20 mm (0.8 in) in length. Shells are subglobose with broadly rounded apertures. Shell color is usually brown, occasionally green, and often with four equidistant color bands.
Range and habitat
The plicate rocksnail historically occurred in the Black Warrior River, the Little Warrior River, and the Tombigbee River. Recent status surveys have located plicate rocksnail populations only in an approximately 88 km (55 mi) reach of the Locust Fork of the Black Warrior River, Jefferson and Blount counties, Alabama. The latest survey information indicates that the snail has recently disappeared from the upstream two-thirds portion of that habitat and now appears to be restricted to an approximately 32 km (20 mi) reach in Jefferson County.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet
Snails move on a single foot and feed with a rasping tongue. Island and spring species rarely recolonise once the site is emptied.
In crisis
The snail has been listed as endangered on the United States Fish and Wildlife Service list of endangered species since October 28, 1998.
Plicate rocksnail is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Plicate rocksnail, Wikidata item Q3138499. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
