Published December 5, 2025
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Taxonomic treatment
Open
Dicharax duoculmen
Authors/Creators
- 1. Centre for Agricultural Research, HUN-REN Centre for Agricultural Research, 2462 Martonvásár, Brunszvik u. 2, Hungary. & Department of Soil, Water and Natural Sciences, Albert Kázmér Faculty of Agricultural and Food Sciences of Széchenyi István University, Vár 2., 9200 Mosonmagyaróvár, Hungary.
- 2. Department of Morphology, Systematics and Phylogeny of Animals, Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia.
- 3. SM Sehgal Foundation Center for Biodiversity and Conservation, Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Sriramapura, Jakkur PO., Bangalore 560064, India. & Manipal Academy for Higher Education, Madhav Nagar, Manipal 576104, India. & Yenepoya Research Center, University Road, Derlakatte, Mangalore, India.
Description
Dicharax duoculmen (Godwin-Austen, 1914)
Fig. 40A–E
Alycaeus duoculmen Godwin-Austen, 1914: 365, pl. 157 figs 2, 2a.
Alycaeus (Raptomphalus) duoculmen – Gude 1921: 286–287.
Chamalycaeus (Raptomphalus) duoculmen – Ramakrishna et al. 2010: 68.
Dicharax (?) duoculmen – Páll-Gergely et al. 2020: 86.
Type material examined
INDIA • holotype (single shell mentioned in the original description: Fig. 40A–E); Tsanspu Valley; Oakes leg.; NHMUK 1903.7.1.3582.
Type locality
“Tsanspu Valley”.
Differential diagnosis
The most similar species is D. magnificus, which has a stronger R1 sculpture, a more strongly fringed aperture and a sharper keel on the umbilical side of R2.
Notes
Published as part of Páll-Gergely, Barna, Gojšina, Vukašin & Aravind, Neelavar Ananthram, 2025, A review of Chamalycaeus, Cycloryx and Dicharax species of the Himalaya and Myanmar and seven new species of Alycaeinae from the Blue Mountain, Mizoram, India (Gastropoda, Caenogastropoda, Cyclophoridae), pp. 1-158 in European Journal of Taxonomy 1029 on page 71, DOI: 10.5852/ejt.2025.1029.3131, http://zenodo.org/record/17864673
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- NHMUK
- Material sample ID
- NHMUK 1903.7.1.3582
- Scientific name authorship
- Godwin-Austen
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Architaenioglossa
- Family
- Cyclophoridae
- Genus
- Dicharax
- Species
- duoculmen
- Taxon rank
- species
- Type status
- holotype
- Taxonomic concept label
- Dicharax duoculmen (Godwin-Austen, 1914) sec. Páll-Gergely, Gojšina & Aravind, 2025
References
- Gude G. K. 1921. The Fauna of British India including Ceylon and Burma. Mollusca. III. Land operculates (Cyclophoridae, Truncatellidae, Assimineidae, Helicinidae). Taylor and Francis, London. https://doi.org/10.5962/bhl.title.12890
- Ramakrishna, Mitra S. C. & Dey A. 2010. Annotated Checklist of Indian Land Molluscs. Zoological Survey of India, Kolkata. Available from http://faunaofindia.nic.in/PDFVolumes/occpapers/306/index.pdf [accessed 1 May 2025].
- Pall-Gergely B., Sajan S., Tripathy B., Meng K., Asami T. & Ablett J. D. 2020. Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue. ZooKeys 981: 1-220. https://doi.org/10.3897/zookeys.981.53583