Hypermastus sp., Tel Aviv, Israel, HELM project (sample S67_3F): front (A, B), side (C, D) and back (E) views, apex with optical microscope (F) and SEM (G) showing the protoconch-teleoconch transition (the shell had a different orientation in images F and G). The arrow marks the constriction between protoconch and teleoconch that is a diagnostic character for this species. Scale bars: 0.5 mm (A–E); 0.2 mm (F, G).

  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. https://doi.org/10.3897/zookeys.1010.58759