paucilirata Melvill & Standen, 1912: synonym of Onoba paucilirata (Melvill & Standen, 1912) Rissoa pelseneeri Thiele, 1912: synonym of Powellisetia pelseneeri (Thiele, 1912) Rissoa porifera (Lovén, 1843): synonym of Rissoa lilacina Récluz, 1843 Rissoa principis Watson, 1886: synonym of Powellisetia principis (Watson, 1886) Rissoa proxima Forbes & Hanley, 1850: synonym of Ceratia proxima (Forbes & Hanley, 1850) Rissoa punctatostriata Tenison Woods, 1879: synonym of Leucotina casta (A. Adams, 1853) Rissoa punctulum Philippi, 1836: synonym of Pisinna glabrata (Von Mühlfeldt, 1824) Rissoa rufilabris Alder, 1844: synonym of Rissoa lilacina Récluz, 1843 Rissoa rufilabrum Alder, 1844: synonym of Rissoa lilacina Récluz, 1843 Rissoa sarsii Lovén, 1846: synonym of Pusillina sarsii (Lovén, 1846) Rissoa scalarella C. B. Adams, 1845: synonym of Schwartziella scalarella (C. B. Adams, 1845) Rissoa scotiana Melvill & Standen, 1907: synonym of Onoba semicostata (Montagu, 1803) Rissoa semistriata Philippi, 1849: synonym of Diala semistriata (Philippi, 1849) Rissoa sinapi Watson, 1886: synonym of Skenella sinapi (Watson, 1886) Rissoa sinuosa Scacchi, 1836: synonym of Melanella sinuosa (Scacchi, 1836) Rissoa striata (J. Adams, 1797): synonym of Onoba semicostata (Montagu, 1803) Rissoa striatula Jeffreys, 1847: synonym of Ceratia proxima (Forbes & Hanley, 1850) Rissoa studeriana Thiele, 1912: synonym of Onoba steineni (Strebel, 1908) Rissoa suavis Thiele, 1925: synonym of Onoba suavis (Thiele, 1925) Rissoa subangulata C.B. Adams, 1850: synonym of Schwartziella bryerea (Montagu, 1803) Rissoa subantarctica Thiele, 1912: synonym of Onoba subantarctica (Thiele, 1912) Rissoa subcostulata Schwartz, 1864: synonym of Rissoa guerinii Récluz, 1843 Rissoa subtruncata Pelseneer, 1903: synonym of Powellisetia pelseneeri (Thiele, 1912) Rissoa subtruncata Vélain, 1877: synonym of Scrobs subtruncata (Vélain, 1877) Rissoa syngenes (A. E. Verril, 1884): synonym of Alvania syngenes (A. E. Verrill, 1884) Rissoa transenna Watson, 1886: synonym of Onoba transenna (Watson, 1886) Rissoa valdiviae Thiele, 1925: synonym of Onoba steineni (Strebel, 1908) Rissoa venusta Garrett, 1873: synonym of Iravadia quadrasi (O. Boettger, 1893) Rissoa vitrea C. B. Adams, 1850: synonym of Zebina vitrea (C. B. Adams, 1850) Rissoa xanthias Watson, 1886: synonym of Benthonellania xanthias (Watson, 1886) Rissoa xanthias var. acuticostata Dall, 1889: synonym of Benthonellania acuticostata (Dall, 1889) References Nordsieck, F. (1972). Die europäischen Meeresschnecken (Opisthobranchia mit Pyramidellidae; Rissoacea). Vom Eismeer bis Kapverden, Mittelmeer und Schwarzes Meer. Gustav Fischer, Stuttgart. XIII + 327 pp. Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp. Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.)