Dicharax is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Alycaeidae.
Diplommatina is a genus of land snails with an operculum, terrestrial gastropod mollusks in the family Diplommatinidae.
Opisthostoma is a genus of minute land snails with opercula, terrestrial gastropod mollusks or micromollusks in the family Diplommatinidae.
Cyclophoridae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the order Architaenioglossa belonging to the subclass Caenogastropoda.
Cyclophoroidea is a superfamily of land snails with an operculum, terrestrial gastropods within the order Architaenioglossa, that belongs to the subclass Caenogastropoda.
Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Plectopylidae is a taxonomic family of large air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Plectopyloidea.
Alycaeidae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Hypselostoma is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Vertiginidae, the whorl snails.
Sinoennea is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Diapheridae.
Plectostoma sciaphilum is an extinct species of land snail in the family Diplommatinidae. This species was originally found on a single limestone karst at Bukit Panching, in Peninsular Malaysia. This species was last observed around 2003 before quarrying destroyed its only known habitat. Plectostoma species are allopatric, found in dozens of isolated karst hills where few species occur, meaning that limited gene flow exists and only negligible hybridization occurs. Shell is distinctly convex, tuba shape similar to that of Plectostoma senex and P. turriforme, but this species lacks basal constriction teeth. Additionally, studies show that Plectostoma species evolved unique shell traits—like dense ribs and thicker walls—as defenses against predators, indicating a complex evolutionary adaptation within this genus. Shell height: 2.6–2.9 mm, width: 1.5–1.6 mm
Metalycaeus is a genus of tropical land snails with an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
Angustopila psammion is a species of land snail belonging to the subfamily Hypselostomatinae of the family Gastrocoptidae. It was described in 2022.
