Vol. 78 2026
ARTICLES
The First Troglophilic Species of the Genus Ligidium Brandt, 1833 (Isopoda; Ligiidae) from Iran
Mahmood Mehrafrooz Mayvan1, Ghasem M. Kashani2,*, Shaylin Hajikhani2 & Ľubomír Kováč3
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1Institute of Soil Biology and Biogeochemistry, Biology Center of the Czech Academy of Sciences, Na Sádkách 7, 370 05 České Budějovice, Czech Republic
2Department of Biology, Faculty of Science, University of Zanjan, Zanjan, Iran; E-mail: kashani_gm@znu.ac.ir, shaylinkhani80@gmail.com
3Institute of Soil Biology and Biogeochemistry, Biology Centre of the Czech Academy of Sciences, Na Sádkách 7, CZ-37005 3 3Department of Zoology, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik, University, Šrobárova 2, 041 54 Košice, Slovakia; E-mail: HYPERLINK “mailto:lubomir.kovac@upjs.sk” lubomir.kovac@upjs.sk
Abstract
A new species of the genus Ligidium Brandt, 1833, collected from Danial Cave in northern Iran, is described. Ligidium danialensis Kashani & Mehrafrooz Mayvan, sp. nov. can be easily distinguished from congeners by the male pleopod 2 endopodite bearing a lateral hollow at the apex of its outer margin. It is the first troglophilic terrestrial isopod species described from the Alborz Mountains.
Key words
biodiversity, cave-dwelling, Iran, new species, Oniscidea
How to Cite
Mayvan M. M., Kashani G. M., Hajikhani S. & Kováč Ĺ. 2026. The First Troglobitic Species of the Genus Ligidium Brandt, 1833 (Isopoda; Ligiidae) from Iran. Acta zoologica bulgarica 78.
References
- Bakhshi Y., Kashani G.M. & Sadeghi S. 2020. Cylisticus ilamicus sp. nov., a new woodlouse species (Oniscidea: Cylisticidae) from Iran. Zoosystematica Rossica 29 (2): 316-322. https://doi.org/10.31610/zsr/2020.29.2.316
- Bakhshi Y., Kashani G.M., Sadeghi S. & Darvishnia H. 2021. Agnara cavernicola, the second troglophilic terrestrial isopod species (Isopoda: Oniscidea) from Iran. Journal of Natural History 55 (45-46): 2823-2830. https://doi.org/10.1080/00222933.2022.2025939
- Bakhshi Y., Hosseini S. & Sadeghi S. 2023. A New Cavernicolous Species of Oniscidea from South of Iran (Crustacea, Isopoda), with New Data on Woodlice Fauna of Fars Province. Iranian Journal of Science 47 (5): 1441-1449. https://doi.org/10.1007/s40995-023-01508-5
- Bakhshi Y. & Sadeghi S. 2019. First record of the ant woodlouse, Platyarthrus hoffmannseggii Brandt, 1833 (Isopoda, Oniscidea, Platyarthridae) from Iran. Crustaceana 92 (8): 1021-1024. https://doi.org/10.1163/15685403-00003926
- Bakhshi Y. & Sadeghi S. 2023. A New Species of the Genus Berytoniscus Vandel, 1955 (Isopoda: Oniscidea: Berytoniscidae), and First Record of the Family Berytoniscidae from Iran. Annales Zoologici 73 (4): 581-586. https://doi.org/10.3161/00034541ANZ2023.73.4.001
- Barjadze S., Mehrafrooz Mayvan M., Parimuchová A., Maghradze E. & Kováč Ľ. 2024. Two new species of Plutomurus Yosii (Collembola: Tomoceridae) from Georgia and Iran. Zootaxa 5463(4): 559-572. https://doi.org/10.11646/zootaxa.5463.4.6
- Borutzky E.V. 1950. Nazemnyje Isopoda peshcher Kavkaza i Kryma. I. Sem. Ligiidae. Byulleten Moskovskogo Obshchestva Ispytatelei Prirody, Biologia 5: 69–81. [in Russian].
- Borutzky E.V. 1962. Fauna of terrestrial isopods in the caves of the Crimea in zoogeographical aspect. Zoologicheskii Zhurnal 41 (2): 193-202. (In Russian with English summary).
- Boyko C. B., Campos-Filho I. S., Hadfield K. A., Hughes T., Merrin K. L., Ota Y. & Poore, G. C. B. (Eds.). 2025. World Marine, Freshwater and Terrestrial Isopod Crustaceans database. Ligidium Brandt, 1833. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=248907 (accessed on 2025-07-24).
- Dimitriou A.C., Taiti S. & Sfenthourakis S. 2019. Genetic evidence against monophyly of Oniscidea implies a need to revise scenarios for the origin of terrestrial isopods. Scientific Reports 9: 18508. https://doi.org/10.1038/s41598-019-55071-4
- Esmaeili-Rineh S. & Sari A. 2013. Two new species of Niphargus Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from two caves in Iran. Journal of Natural History 47 (41-42) 2649-2669. https://doi.org/10.1080/00222933.2013.80204
- Ficetola G., Mazel F. & Thuiller W. 2017. Global determinants of zoogeographical boundaries. Nature Ecology & Evolution 1: 0089. https://doi.org/10.1038/s41559-017-0089
- Gongalsky K.B. & Taiti S. 2014. A new cavenicolous species of Typhloligidium Verhoeff, 1918 (Isopoda: Oniscidae: Ligiidae) from the Caucasus. Arthropoda Selecta 23 (1): 51-56.
- Kashani G.M., Malekhosseini M.J. & Sadeghi S. 2013. First recorded cave-dwelling terrestrial isopods (Isopoda: Oniscidea) in Iran with a description of a new species. Zootaxa 3734 (5): 591-596. http://dx.doi.org/10.11646/zootaxa.3734.5.8
- Kashani G.M., Dashan M. & Sadeghi S. 2016. Description of Protracheoniscus faramarzi n. sp., the first troglophilic terrestrial isopod (Isopoda: Oniscidea) from Iran. Iranian Journal of Animal Biosystematics 12: 51-56. https://doi.org/10.22067/ijab.v12i1.48820
- Khalaji-Pirbalouty V. & Wägele J. 2010. Two new species of Ligia Fabricius, 1798 (Crustacea: Isopoda: Ligiidae) from coasts of the Persian and Aden gulfs. Organisms Diversity and Evolution 10: 135-145. https://doi.org/10.1007/s13127-010-0003-5.
- Kováč, Ľ., Karaman, M. & Mehrafrooz Mayvan M. 2025. Convergent evolution underground – two new troglomorphic collembolan species of the genus Schaefferia Absolon, 1900 (Collembola, Poduromorpha, Hypogastruridae) from Iran and Montenegro. Subterranean Biology 54: 1-22. https://doi.org/10.3897/subtbiol.22.157228
- Mehrafrooz Mayvan M., Parimuchová A. & Kováč, Ľ. 2024. A new subterranean species of Oncopodura Carl & Lebedinsky, 1905 (Collembola, Entomobryomorpha, Oncopoduridae) from a cave in Northeastern Iran. Subterranean Biology 49: 31-51. https://doi.org/10.3897/subtbiol.49.118293
- Mehrafrooz Mayvan M. & Kováč Ľ. 2025. Two new species of the genus Acherontiella (Collembola, Hypogastruridae) from caves of the Alborz and Kopet Dagh mountains in Iran. ZooKeys 1255: 1-25. https://doi.org/10.3897/zookeys.1255.164170
- Mehrafrooz Mayvan M., Kashani G.M., Hajikhani S. & Kováč L. In press. Terrestrial isopods from the caves of northeastern Iran (Isopoda, Oniscidea) with a redescription of Protracheoniscus turcomanicus Borutzky, 1945. Arthropoda Selecta
- Nassirkhani M. 2022. Description of a new pseudoscorpion, Withius leggi sp. n. (Pseudoscorpiones: Withiidae) from northern Iran. Zoology in the Middle East 68 (3): 272-279. https://doi.org/10.1080/09397140.2022.2077560
- Noori S., Zahiri R., Yusefi G.H., Rajabizadeh M., Hawlitschek O., Rakhshani E., Husemann M. & Rajaei H. 2024. Patterns of Zoological Diversity in Iran – A Review. Diversity 16: 621. https://doi.org/10.3390/d16100621
- Recuero E. & Caterino, S.C. 2024. Hidden diversity in eastern North America: The genus Ligidium (Oniscidea, Ligiidae) in the southern Appalachian Mountains. Zoologica Scripta 53: 712-731. https://doi.org/10.1111/zsc.12661
- Recuero E. & Caterino S.C. 2025. Is there anybody (new) out there? Seven new species of Ligidium (Isopoda, Oniscidea, Ligiidae) from the Southern Appalachians, eastern North America. European Journal of Taxonomy 976: 133-170. https://doi.org/10.5852/ejt.2025.976.2783
- Romero A. 2009. Cave Biology, life in darkness. Cambridge University Press, 291 pp.
- Schmalfuss H. 1986. Landasseln aus Nord-Iran (Crustacea: Isopoda: Oniscidea). Senckenbergiana Biologica 66: 377-397.
- Schmidt C. 2002. Contribution to the phylogenetic system of the Crinocheta (Crustacea, Isopoda). Part 1. (Olibrinidae to Scyphacidae s.str.). Mitteilungen aus dem Museum für Naturkunde Berlin, Zoologische Reihe 78 (2): 275-352.
- Turbanov I.S. & Gongalsky K.B. 2016. Typhloligidium lithophagum sp. n. (Isopoda, Oniscidea, Ligiidae), a new species of troglobiotic woodlouse from the Crimean Peninsula. Zoologicheskii Zhurnal 95 (11): 1277-1282.
- Wang J., Yang J., Zeng X. & Li W. 2022. Integrative taxonomy on the rare sky-island Ligidium species from southwest China (Isopoda, Oniscidea, Ligiidae). BMC Zoology 7: 26. https://doi.org/10.1186/s40850-022-00120-1
- Yusefinia A.A. 2017. Ancient Langa: Kelarabad, Salmanshahr and Abbas Abad. Bolur Publisher, Rasht, 61 pp. (In Persian).
- Zong Z., Wang J., Jiang Ch. & Li W. 2025. Integrative taxonomy reveals two new species of Ligidium (Crustacea, Isopoda, Oniscidea) from China. Zoosystematics and Evolution 101 (3): 1187-1195. https://doi.org/10.3897/zse.101.148504


