Description: English: Plate 85. Ianthina fragilis. Common Oceanic Snail—upper and lower figures. Modern accepted name (2012) is Janthina janthina[1]. Ianthina globosa. Globular Oceanic Snail—middle figures. Modern orthography is Janthina globosa[2]. Date: February 1821. Source: Zoological Illustrations, Volume II. Author: William Swainson, F.R.S., F.L.S.
Description: English: Illustration of Janthina janthina (Linnaeus, 1758)[1] seashell; taken from Fibuier, Louis (1868) Ocean World: Being a Descriptive History of the Sea and its Living Inhabitants. New York: D. Appleton & Co. Date: 8 November 2020. Source: Original filed on Wikimedia Commons. Author: Fibuier, Louis.
Description: English: Two shells of Janthina janthina (Linnaeus, 1758)[1] with their air floats with hardened mucus; from Manukau Harbour, Kaitarakihi Bay (eastern end of beach), North Island of New Zealand. Date: 8 November 2020. Source: Original image filed on iNaturalist.org. Author: Lange, Peter de.
Description: English: Illustration of Janthina janthina (Linnaeus, 1758) alive with the animal ("FL": float; "O" : eggs; "Pr": proboscis; "Br": branchiae; "F": foot); taken from Cooke, A. H.; Shipley, A. E.; Reed, F. R. C. (1895) Molluscs, Cambridge Natural History, v.3, London: Macmillan and Co. Date: 9 November 2020. Source: Original filed on Wikimedia Commons. Author: Cooke, A. H. Shipley, A. E. Reed, F. R. C.
Description: English: A seashell of the Epitoniidae Janthina janthina (Linnaeus, 1758)[1]; from Ripiro Beach, south of Omamari Stream, Northland, North Island of New Zealand. Edited photo with darker colors. Date: 8 November 2020. Source: Original image filed on iNaturalist.org. Author: Lange, Peter de.