Nova Scotian Institute of ScienceDavis, Derek S2011-06-222011-06-221974Davis, D.S. (1974). Variation in the northern rough periwinkle, Littorina saxatilis (Olivi) in Nova Scotia. Proceedings of the Nova Scotian Institute of Science, 27(2), 61-90.http://hdl.handle.net/10222/13852Received for publication June 28, 1973; b&w maps; b&w illus.; b&w photograph; bibliographic referencesenNova ScotiaLittorina saxatilisLittorinidaeMollusksText