Slugs and semi-slugs of the superfamily Helicarionoidea (Gastropoda, Stylommatophora) collected in North Vietnam during the 2023 Bulgarian Zoological Expedition, with emphasis on the genus <i>Ostracolethe</i>.

ABSTRACT: A list of species of slugs and semi-slugs of the superfamily Helicarionoidea collected in North Vietnam in 2023 is presented. A new species of the genus Ostracolethe Simroth, 1901, Ostracolethe penevi Dedov & Vu, sp. nov., is described, which was collected from a single locality in North Vietnam. The validity of Ostracolethe fruhstorfferi Simroth, 1901 is confirmed, and the unusual torus-toroid structure is discussed. A key for the determination of the helicarionoid genera of slugs and semi-slugs from North Vietnam is also provided.

SUBMITTER: Dedov I 

PROVIDER: S-EPMC12402822 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature