original description(ofMangelia spica Hedley, 1907)Hedley, C. (1907). The results of deep sea investigation in the Tasman Sea. III Mollusca from eighty fathoms off Narrabeen. <em>Records of the Australian Museum.</em> 6(4): 283-304, pls 54-56., available online athttps://www.biodiversitylibrary.org/page/7108270 page(s): 297, pl. 55 fig. 20 [details]