Gude G. K. (1897). Armature of Helicoid landshells and new forms of Plectopylis. <em>Science Gossip.</em> 3 (34): 274–276., available online athttps://biodiversitylibrary.org/page/33878894 page(s): 274, figs 38a–d [details]
original descriptionGude G. K. (1897). Armature of Helicoid landshells and new forms of Plectopylis. <em>Science Gossip.</em> 3 (34): 274–276., available online athttps://biodiversitylibrary.org/page/33878894 page(s): 274, figs 38a–d [details]