The phantom cave snail or phantom cavesnail (Pyrgulopsis texana) is a species of very small freshwater snail with an operculum, an aquatic gastropod in the family Hydrobiidae.

This species is endemic to the lower Pecos River basin, Texas, the United States.

[3] When originally described in 1935, the phantom cave snail was assigned to the genus Cochliopa.

Following a detailed examination of shell and anatomical characteristics along with genetic sequencing it was transferred to the genus Pyrgulopsis in 2010.

This Hydrobiidae-related article is a stub.