Provanna variabilis is a species of sea snail, a marine gastropod mollusk in the family Provannidae.
Distribution This marine species occurs at hydrothermal vents off the Juan de Fuca Ridge, Northeast Pacific Ocean.
References
Warén A. & Bouchet P. (2001). Gastropoda and Monoplacophora from hydrothermal vents and seeps new taxa and records. The Veliger 44(2): 116–231
External links Steffen Kiel, Shell structures of selected gastropods from hydrothermal vents and seeps; Malacologia v. 46 (2004)