Anatomy and taxonomic position of Elma H. Adams, 1866: a high-spired Southeast-Asian genus of Streptaxidae (Gastropoda: Eupulmonata)
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Shinshu University, Department of Biology, Matsumoto, Japan
Mátra Múzeum, Gyöngyös, Hungary
Department of Natural Sciences, National Museum of Wales, Cardiff, United Kingdom
Submission date: 2015-02-02
Final revision date: 2015-04-20
Acceptance date: 2015-04-29
Publication date: 2015-05-28
Corresponding author
Barna Páll-Gergely   

Shinshu University, Department of Biology, 390-8621 Matsumoto, Japan
Folia Malacol. 2015;23(2):155-164
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.
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