The oldest member is the type species "Haustellum haustellum" from the Indo-Pacific province. It is the type species of the genus "Haustellum" Schumacher, 1817. Houart (1999) transferred 14 Indo-Pacific species and three subspecies of "Haustellum" in the genus "Vokesimurex". As currently defined, "Haustellum" is represented by eight to nine species.