original description(ofSurcula scalaria Barnard, 1958)Barnard, K. H. (1958). Contributions to the knowledge of South African marine Mollusca. Part I. Gastropoda: Prosobranchiata: Toxoglossa. <em>Annals of the South African Museum.</em> 44(1): 73-163., available online athttp://biodiversitylibrary.org/page/40862937 page(s): 146, fig. 22d. [details]
context source (Deepsea)Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online athttp://www.iobis.org/[details]