A new species of Crenavolva (Gastropoda, Ovulidae) from Mozambique

A new species of Crenavolva Cate, 1973, C. irisae n. sp., is described from Mozambique. Its distinguishing features are compared with those of the western Indian Ocean representatives of the genus (C. martini, C. traillii, C. philippei), as well as with several related species from the Pacific and the eastern Indian Ocean (C. striatula, C. marmorata, C. guidoi, C. janae, C. leopardus, C. tinctura, and C. cruenta). It is concluded that C. irisae n. sp. cannot be confused with any species previously reported from East Africa, nor does it correspond to any known Indo-Pacific species whose presence in Mozambique might represent a first record.