Comparison between Parthenina cossmanni (Hornung & Mermod, 1924) and Parthenina indistincta (Montagu, 1808) A–F Parthenina cossmanni, north of Atlit, Israel, HELM project (sample NG30_2F): front (A, C) and back (B, D) views, detail of the spiral sculpture on the body whorl (E) and apical view of the protoconch (F) G, H Parthenina cossmanni, Ashqelon, Israel, HELM project (sample SG20_4F): front (G) and back (H) views I–L Parthenina indistincta, Ashqelon, Israel, HELM project (sample SC30_1_15L): front (I, K) and back (J, L) views. Scale bars: 0.5 mm (A–E, G–L); 0.1 mm (F).

  Part of: Albano PG, Steger J, Bakker PAJ, Bogi C, Bošnjak M, Guy-Haim T, Huseyinoglu MF, LaFollette PI, Lubinevsky H, Mulas M, Stockinger M, Azzarone M, Sabelli B (2021) Numerous new records of tropical non-indigenous species in the Eastern Mediterranean highlight the challenges of their recognition and identification. ZooKeys 1010: 1-95.