Two new species of Hecuba Schumacher, 1817 (Bivalvia: Donacidae)

In addition to the three extant species of Hecuba Schumacher, 1817 discussed in Raven & Dekker (2022, Basteria, 86 (2): 96-113) a fourth extant species occurs in eastern Sumatra, Indonesia, herein described as Hecuba parva spec. nov. A fossil from the Miocene of India is herein described as H. mukerjeei spec. nov. The type species of Hecuba is corrected to Venus scortum Linnaeus, 1758. A correction is made regarding the reference to Rumphius in Raven & Dekker (2022).