Cheсklist of gastropod molluscs in mangroves of Khanh Hoa province, Vietnam Author Zvonareva, Sofya Author Kantor, Yuri text Zootaxa 2016 4162 3 401 437 journal article 10.11646/zootaxa.4162.3.1 bc54479e-1a51-4fea-861e-757a5a391348 1175-5326 254973 DDBC36A0-5305-45FD-9C79-170C53B72DA9 Sermyla cf. riqueti ( Grateloup, 1840 ) Figs 6 E–H Melania riqueti Grateloup, 1840 : 433 . Sermyla riqueti : Lozouet & Plaziat 2008 : 114 –115, pl. 21, figs 5–6; Zvonareva et al . 2015 : 8 . Material examined. Nha Phu Bay , about 10 specimens . Abundance. Uncommon. Measurements. Up to 13 mm ( Lozouet & Plaziat 2008 ). Ecological notes. Subtidal estuarine species, to be referred to the non-mangal malacofauna. Dwells buried superficially within the bottom sand of the estuarine channel ( Lozouet & Plaziat 2008 ). In studied sites was found buried in sediment in streams. Relation to mangroves. Eurybiotic. Distribution in Vietnam . Central coast. General distribution. Indian and western Pacific Ocean, with a wide distribution in south and South-East Asia ( Brandt 1974 ).