Phylogenetic insights into the terrestrial snails Helicoidei (Gastropoda: Stylommatophora) with special emphasis on the Camaenidae

Zhang, Guoyi; Naggs, Fred; Andrus, Peter S; Wade, Christopher M

Abstract

The superfamily Helicoidei are a widely distributed and diverse infraorder of land snails and slugs. Here, we constructed a phylogenetic tree based on sequences of the large subunit ribosomal RNA gene to investigate the relationships within the Helicoidei. Based on our phylogenetic tree, the family Camaenidae, as currently recognized, is not monophyletic, with the Polygyridae falling within the group. Likewise, the family Hygromiidae as currently defined is not monophyletic and incorporates the Geomitridae. The family Xanthoncyhidae form a monophyletic group that is sister to the Pleurodontidae. Likewise, the family Helicidae form a monophyletic group; it is sister to the branch incorporating Hygromiidae, Geomitridae, Pleurodontidae, Helicodontidae, and Xanthonychidae. The Solaropsidae are the sister group to a clade comprising other Sagdoidea. Our findings suggest that the Hygromiidae s.l. families should be restored to their previous name, Hygromiidae. A new genus of Bradybaeninae, Jiaoliaous Zhang gen. nov., is described here, with a simple genital system, single dart sac with multi-branched mucous glands, and a penis with a penial sheath.

Citation

Zhang, G., Naggs, F., Andrus, P. S., & Wade, C. M. (in press). Phylogenetic insights into the terrestrial snails Helicoidei (Gastropoda: Stylommatophora) with special emphasis on the Camaenidae. Zoological Journal of the Linnean Society, Article zlae027. https://doi.org/10.1093/zoolinnean/zlae027

• Journal Article Type: Article
• Acceptance Date: Feb 3, 2024
• Online Publication Date: Mar 23, 2024
• Deposit Date: Mar 26, 2024
• Publicly Available Date: Mar 27, 2024
• Journal: Zoological Journal of the Linnean Society
• Print ISSN: 0024-4082
• Electronic ISSN: 1096-3642
• Publisher: Oxford University Press
• Peer Reviewed: Peer Reviewed
• Article Number: zlae027
• DOI: https://doi.org/10.1093/zoolinnean/zlae027
• Keywords: Helicoidei, Helicoidea, Camaenidae, China, molecular phylogeny, cladistics
• Public URL: https://nottingham-repository.worktribe.com/output/33020701