The species listed above with an asterisk (*) are nomen dubium and need further study to determine if they are valid species or synonyms, while a double asterisk (**) marks a taxon inquirendum.[1]
References
^ abcdJulian Finn (2016). "Euprymna Steenstrup, 1887". World Register of Marine Species. Flanders Marine Institute. Retrieved 11 February 2018.