Sayella producta (C. B. Adams, 1840): synonym of Syrnola producta (C. B. Adams, 1840)
References
^Dall, W. H. 1884. On a collection of shells sent from Florida by Mr. Henry Hemphill. Proceedings of the United States National Museum 6(384): 318-342, pl. 10
^Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN0-915826-22-4. XII, 195 pp.
^Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.
Vaught, K.C.; Tucker Abbott, R.; Boss, K.J. (1989). A classification of the living Mollusca. American Malacologists: Melbourne. ISBN0-915826-22-4. XII, 195 pp
Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda