What is "polygireulima"

Polygireulima is a genus of very small parasitic sea snails, marine gastropod mollusks or micromollusks in the Eulimidae family.

This genus was first described as Acicularia by Monterosato in 1884, a name ruled invalid as a homonym of several prior names. In 1984, Anders Warén's "A generic revision of the family Eulimidae (Gastropoda, Prosobranchia)" synonymised Acicularia with Federico Sacco's 1892 description of Polygireulima.