Two New Species of the Family Ovulidae (Gastropoda) from Japan

Abstract

Two new species of the family Ovulidae are described from off the Kii Peninsula, from Kuchinoshima Island and the Oshima-Shin-Sone Bank, Japan. Primovula astra n. sp. is closely similar to Primovula oryza Omi & Clover, 2005 in overall morphology, but it can be distinguished by its non-beaked posterior extremity and different dorsal marking. Phenacovolva vitrea n. sp. is most similar to Phenacovolva tayloriana Azuma & Cate, 1971, but differs from it in forming short and callously rimmed terminals, and having less flared margin.