additional sourceJanssen, A. W. (2004). Holoplanktonic molluscan assemblages (Gastropoda, Heteropoda, Thecosomata) from the Pliocene of Estepona (Spain, Malaga). <em>Palaeontos.</em> 5: 103-131. note: treated as synonym of D. trispinosa[details]
status sourceRampal J. (2019). Euthecosomata (Mollusca: Gastropoda: Thecosomata). A taxonomic review. <em>Bollettino Malacologico.</em> 55: 145-186. page(s): 165 [details]
Present Inaccurate Introduced: alien Containing type locality