Yao Zheng, Stephen Maxwell
A new species of Tudivasum is circumscribed from deep water south-western Australia. Tudivasum leemanense sp. nov. is described based on morphology. The new species differs from Tudivasum ashmorense Morrision, 2020, Tudivasum chaneyi Morrison, 2020, Tudivasum inerme Angas, 1878, and Tudivasum spinosum (H. & A. Adams, 1864) in having alamellate sculpture, and differs from Tudivasum kurtzi (Macpherson, 1964) and Tudivasum westrale Morrison, 2020 in lacking fine sharp spines that cover the body whorl.