Planacollonista is a genus of sea snails, marine gastropod mollusks in the subfamily Colloniinae of the family Colloniidae.
Species Planacollonista arneghysi Poppe, Tagaro & S.-I Huang, 2023 Planacollonista nanina (Souverbie, 1864) Planacollonista polongi Poppe, Tagaro & S.-I Huang, 2025 Planacollonista rosa (Pilsbry, 1904) Planacollonista rosea (Tenison Woods, 1876)
References
Poppe, G.T., Tagaro, S.P. & Huang, S.-I. (2023). The recent Colloniidae with a study of the Colloniidae collected by various expeditions of the Muséum national d'Histoire naturelle, Paris. Harxheim: ConchBooks. 372 pp