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 Nautilus umbilicatus [ spec. nov. ] N. testae apertura compresso-lineari, anfractibus contiguis compressis, umbilico concavo. Column. phytob. 2. t. 38. f. E. Habitat Liburni. D. D. Kaehler ; minutus. Testa sulcis transversis secundum dissepimenta oblique articulata est, praesertim carinae propius.