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Issue: Vol. 4766 No. 3: 21 Apr. 2020
Type: Article
Published: 2020-04-21
DOI: 10.11646/zootaxa.4766.3.4
Page range: 447–456
Abstract views: 189
PDF downloaded: 7

A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov. et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China

School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China Palaeontology, Geobiology and Earth Archives Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Kensington, NSW 2052, Australia Australian Museum, 1 William St, Sydney NSW 2010, Australia
Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
Hainan Academy of Ocean and Fisheries Sciences, Institute of Freshwater Fishery, Haikou 571126, China
Crustacea freshwater crab Hainan new genus new species Potamidae systematics

Abstract

A new genus and new species of terrestrial freshwater crab, Calcipotamon puglabrum gen. nov. et sp. nov., is described from the limestone forests of Changjiang, Hainan Island, China, based on morphology and mitochondrial 16S rDNA sequences. The new genus is closest to Neotiwaripotamon Dai & Naiyanetr, 1994, and Tiwaripotamon Bott, 1970, but differs in a combination of carapace, third maxilliped, ambulatory leg and male gonopod characters. Molecular analysis shows that the new genus is closely related with but not clustered within other Hainan potamid genera. Notes on the general biology of this new species are also provided.

 

References

  1. Crandall, K.A. & Fitzpatrick, J.F.J. (1996) Crayfish molecular systematics: using a combination of procedures to estimate phylogeny. Systematic Biology, 45, 1–26.

    https://doi.org/10.1093/sysbio/45.1.1

    Dai, A.Y. (1999) Fauna Sinica: Arthropoda Crustacea Malacostraca Decapoda Parathelphusidae Potamidae. Science Press, Beijing, xiii + 501 pp., 238 figs, 8 maps. [in Chinese]

    Do, V.T., Shih, H.T. & Huang, C. (2016) A new species of freshwater crab of the genus Tiwaripotamon bott, 1970 (Crustacea, Brachyura, Potamidae) from northern Vietnam and southern China. Raffles Bulletin of Zoology, 64, 213–219.

    Davie, P.J., Guinot, D. & Ng, P.K.L. (2015) Systematics and classification of Brachyura. In: Castro, P., Davie, P.J.F., Guinot, D., Schram, F.R. & Von Vaupel Klein, J.C. (Eds.), Treatise on zoology—anatomy, taxonomy, biology. The Crustacea. Vol. 9C-I. Brill, Leiden, pp. 1049–1130.

    Huang, C. (2018) Revision of Yarepotamon Dai & Türkay, 1997 (Brachyura: Potamidae), freshwater crabs endemic to southern China, with descriptions of two new genera and four new species. Journal of Crustacean Biology, 38, 173–189.

    https://doi.org/10.1093/jcbiol/rux120

    Huang, C., Ebach, M.C. & Ahyong, S.T. (2020) Bioregionalisation of the freshwater zoogeographical areas of mainland China. Zootaxa, 4742 (2), 271–298.

    https://doi.org/10.11646/zootaxa.4742.2.3

    Huang, C., Shih, H.T. & Ahyong, S.T. (2018) Two new genera and two new species of narrow-range freshwater crabs from Guangdong, China (Decapoda: Brachyura: Potamidae). Journal of Crustacean Biology, 38, 614–624.

    https://doi.org/10.1093/jcbiol/ruy050

    Kumar, S., Stecher, G., Li, M., Knyaz, C. & Tamura, K. (2018) MEGA X: molecular evolutionary genetics analysis across computing platforms. Molecular biology and evolution, 35, 1547–1549.

    https://doi.org/10.1093/molbev/msy096

    Ng, P. K.L. & Yeo, D.C. (2001) A revision of the genus Tiwaripotamon (Decapoda: Brachyura: Potamidae), with a description of a new species. Journal of Crustacean Biology, 21, 275–287.

    https://doi.org/10.1163/20021975-99990123

    Ronquist, F. & Huelsenbeck, J.P. (2003) MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics, 19, 1572–1574.

    https://doi.org/10.1093/bioinformatics/btg180

    Shih, H.T. & Do, V.T. (2014) A new species of Tiwaripotamon Bott, 1970, from northern Vietnam, with notes on T. vietnamicum (Dang & Ho, 2002) and T. edostilus Ng & Yeo, 2001 (Crustacea, Brachyura, Potamidae). Zootaxa, 3764 (1), 26–38.

    https://doi.org/10.11646/zootaxa.3764.1.2

    Shih, H.T., Yeo, D.C. & Ng, P.K.L. (2009) The collision of the Indian plate with Asia: molecular evidence for its impact on the phylogeny of freshwater crabs (Brachyura: Potamidae). Journal of Biogeography, 36, 703–719.

    https://doi.org/10.1111/j.1365-2699.2008.02024.x

    Swofford, D.L. (2002) PAUP*. Phylogenetic analysis using parsimony (*and Other Methods). Version 4. Sinauer, Sunderland, Massachusetts. [program]

    Thompson, J.D., Higgins, D.G. & Gibson, T.J. (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Research, 22, 4673–4680.

    https://doi.org/10.1093/nar/22.22.4673

    Wang, S.B., Huang, C. & Zou, J.X. (2019) Description of a new species of freshwater crab of the genus Qianguimon Huang, 2018 (Crustacea: Decapoda: Brachyura: Potamidae) from Yulin, Guangxi, Southern China. Zoological Studies, 58, 31.

    Yeo, D.C. & Naruse, T. (2007) A revision of the freshwater crab genus Hainanpotamon Dai, 1995 (Crustacea: Decapoda: Brachyura: Potamidae: Potamiscinae), with a redescription of Potamon (Potamon) orientale (Parisi, 1916) and descriptions of three new species. Zoological Science, 24, 1143–1159.

    https://doi.org/10.2108/zsj.24.1143

    Yeo, D.C.J. & Ng, P.K.L. (2004) Recognition of two subfamilies in the Potamidae Ortmann, 1896 (Brachyura, Potamidae) with a note on the genus Potamon Savigny, 1816. Crustaceana, 76, 1219–1235.

    https://doi.org/10.1163/156854003773123456