MolluscaBase name details
original description
(of Tethys extraordinaria J. K. Allan, 1932) Allan, J.K. (1932). A new genus and species of sea-slug, and two new species of sea-hares from Australia. <em>Records of the Australian Museum.</em> 18(6): 314–320, pls 34-35. [details] Available for editors [request]
additional source
Hamatani, I.; Kikutaro, B. (2003). A New Record of Aplysia (Varria) extraordinaria (Allan, 1932) (Opisthobranchia: Anaspidea) from Suruga Bay, Japan. <em>Venus (Journal of the Malacological Society of Japan).</em> 62 (3-4): 129-134. [details] Available for editors [request]