Ascidia echinata

Linnaeus, C. (1767). Systema naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Ed. 12. 1., Regnum Animale. 1 & 2. [The system of nature through the three kingdoms of nature: according to classes, orders, genera, species, with characters, differences, synonyms, places. Ed. 12. 1., Animal Kingdom. 1 & 2]. <em>Holmiae [Stockholm], Laurentii Salvii.</em> pp. 1-532 [1766] pp. 533-1327 [1767].