2015/05/28 by Barna Páll‐Gergely, András Hunyadi, András Varga +1 · 1 citation
Agricultural and Biological Sciences · Environmental Science · Earth and Planetary Sciences · #Mollusks and Parasites Studies #Aquatic Invertebrate Ecology and Behavior #Marine Biology and Ecology Research
paper · pdf · doi:10.12657/folmal.023.013
openalex publication_date 2015/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
This paper describes the reproductive anatomy and the radula morphology of a Taiwanese species of Elma H. Adams, 1886, providing the first information on the anatomy of the genus. The species is provisionally identified as the type species of Elma, E. cf. swinhoei (H. Adams, 1866). Based on this and contrary to previous systematics, we suggest that Elma belongs to the subfamily Streptaxinae or Gibbinae, based on the presence of a well-developed penial sheath and the vas deferens which forms a loop under the penial sheath. Elma is the first high-spired, Southeast-Asian genus to be thus classified. We discuss possible relationships with other Streptaxoidea including the Elma-like genus Pseudelma Kobelt, 1904 and the highspired "Ennea" aliena Bavay et Dautzenberg, 1912.