Identification: The status of R. interrupta in relation to R. parva is still a point of discussion. Based on reserche of Wigham (1975), R. interrupta is considered by many authors as a variety of form of R. parva (Fretter & Graham, 1778; McKay & Smith, 1979). Nordsieck (1968) and Verduin (1976) think however that R. interrupta and R. parva are two different species. Both species have a sympatric appearance. [details]
Citation: Rosenberg, G. (2013). Rissoa interrupta (J. Adams, 1800). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154011 on 2013-05-24