Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis Author Linnaeus, Carolus text 1758 Laurentius Salvius Stockholm https://archive.org/download/mobot31753000798865/mobot31753000798865.pdf book 2C6327E1-5560-4DB4-B9CA-76A0FA03D975 https://doi.org/10.5962/bhl.title.542 3922206 Cardium edule [ spec. nov. ] C. testa antiquata: sulcis XXVI obsolete recurvatoimbricatis. Fn. svec. 1340. List. angl. 189. t. 5. f. 34. Gualt. test. 71. f. F. Habitat in O. Europaeo.