According to Monterosato, Philippi’s Renieri (1844) was a different species than the Pleurotoma Renieri of Scacchi (1835). But, as Scacchi’s Renieri was itself a synonym of Microdrillia crispata (de Cristofori & Jan, 1832), this name fell. In order to avoid any confusion, Monterosato suggested to rename also the shell described by Philippi, and proposed the epithet emendata (see Notizie intorno alle conchiglie fossili di Monte Pellegrino e Ficarazzi , Palermo 1872, p.17).

Protoconch paucispiral of about 2½ whorls; apex obtuse; strong spiral sculpture made up of one keel on the first whorl, two on the second one. Transition protoconch / teleoconch a little chaotic, marked by the appearance of some thin axials.