Watson, R. B. (1886). <i>Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger during the years 1873-76</i>. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology 15 (part 42): 1-756, pls 1-50. , available online athttps://www.biodiversitylibrary.org/page/2004568 page(s): 80; pl. 5 fig. 1 [details]
original descriptionWatson, R. B. (1886). <i>Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger during the years 1873-76</i>. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology 15 (part 42): 1-756, pls 1-50. , available online athttps://www.biodiversitylibrary.org/page/2004568 page(s): 80; pl. 5 fig. 1 [details]