"The systematic position of Mammamia within Julidae is currently highly speculative. Despite its aberrant
morphology, however, M. profuga shows a number of characters that suggest a proximity to the Pachyiulini [...]. If Mammamia and the Pachyiulini indeed share a common ancestor, than the former would present the sister-group to all pachyiuline genera, based on the presence vs. absence of flagellum, respectively."