original description
Berrill, N. J. (1947). The ascidians Trididemnum alleni and Distaplia garstangi new species from Plymonth area. <em>J. Mar. Biol. Ass. U.K.</em> 26: 609-615. [details] Available for editors [request]
additional source
Nishikawa, T. (1990). The ascidians of the Japan Sea 1. <em>Publ. Seto Mar. Biol. Lab.</em> 34(4/6): 73-148. [details]
From editor or global species database
Genetic nomenclature abbreviation Tralle [details]