Nepa cinerea [spec. nov.] N. cinerea, thorace inaequali, corpore ovato. Fn. svec. 691. Nepa abdominis margine integro. Mouff. ins. 321. Scorpio palustris. Jonst. ins. 27. f. 1. 2. & t. 28. f. ad. verb. stell. Pet. gaz. t. 74. f. 4. Bradl. nat. t. 26. f. 2. C. Swamm. bibl. 1. t. 3. f. 4. Roes. ins. app. 1. p. 136. t. 22. f. 6. 7. 8. Bauh. ballon. 212. f. 2. Araneus aquaticus. Habitat in Europae Aquis.Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 440, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/392220