Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5361 No. 2: 1 Nov. 2023
Type: Article
Published: 2023-11-01
DOI: 10.11646/zootaxa.5361.2.8
Page range: 275-286
Abstract views: 377
PDF downloaded: 18

A new species of the coral-symbiont crab genus Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae) from Nansha Islands, the South China Sea

Laboratory of Marine Organism Taxonomy and Phylogeny; Institute of Oceanology; Chinese Academy of Sciences; Qingdao; China; University of Chinese Academy of Sciences; Beijing; China
Laboratory of Marine Organism Taxonomy and Phylogeny; Institute of Oceanology; Chinese Academy of Sciences; Qingdao; China; Shandong Province Key Laboratory of Experimental Marine Biology; Institute of Oceanology; Chinese Academy of Sciences; Qingdao; China; Laoshan Laboratory; Qingdao; China
Laboratory of Marine Organism Taxonomy and Phylogeny; Institute of Oceanology; Chinese Academy of Sciences; Qingdao; China; Shandong Province Key Laboratory of Experimental Marine Biology; Institute of Oceanology; Chinese Academy of Sciences; Qingdao; China; Laoshan Laboratory; Qingdao; China
Crustacea Cymo mazu Cymoinae coral reef Nansha Islands DNA barcode

Abstract

A new species of coral-symbiont crab, Cymo mazu sp. nov., is described from the Nansha Islands in the South China Sea. The new species is distinguished from its congeners by several unique morphological characteristics, including a smooth carapace armed with isolated spiny granules, chelipeds featuring large spines and granules, and a strongly concave endopodite of the first maxilliped. Molecular analysis using mitochondrial cytochrome oxidase I DNA barcodes provides further support for the identification of the new species. The relationships between the new species and its congeners were elucidated through a combination of morphological and molecular evidence. Diagnostic characteristics for differentiation among species of Cymo are discussed, and an updated key to the species of the genus is provided.

 

References

  1. Audouin, J.V. (1826) Explication sommaire des Planches de Crustacés de l’Egypte et de la Syrie, publiée par Jules César Savigny, membre de l’Institut; offrant un exposédes caractères naturels des genres, avec la distinction des espèces. In: Savigny, J.C. (Eds.), Description de l’Egypte, ou recueil des observations et des recherches qui ont faites en Egypte pendant l’expedition de l’armée Française. Histoire naturelle, 1 (4), pp. 77–98.
  2. Brook, G. (1892) Preliminary descriptions of new species of Madrepora in the collections of the British Museum. Part II. Annals and Magazine of Natural History, Series 6, 10 (60), 451–465. https://doi.org/10.1080/00222939208677447
  3. Brösing, A., Al-Aidaroos, A.M. & Türkay, M. (2014) The Red Sea species of Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae), associates of scleractinian corals. Zootaxa, 3779 (2), 195–214. https://doi.org/10.11646/zootaxa.3779.2.5
  4. Castro, P. (1997) Trapeziid crabs (Brachyura: Xanthoidea: Trapeziidae) of New Caledonia, eastern Australia, and the Coral Sea. In: Richer de Forges, B. (Eds.), Les fonds meubles des lagons de Nouvelle-Calédonie (Sédimentologie, Benthos). Études & Thèses, ORSTOM Editions, Paris, 3, pp. 59–107.
  5. Dana, J.D. (1852) Conspectus Crustaceorum, &c. Conspectus of the Crustacea of the Exploring Expedition under Capt. Wilkes, U.S.N. I. CRUSTACEA CANCROIDEA. Proceedings of the Academy of natural Sciences, Philadelphia, 6, 73–86.
  6. Davie, P.J.F., Guinot, D. & Ng, P.K.L. (2015) Anatomy and functional morphology 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, Complementary to the Volumes Translated from the French of the Traité de Zoologie. 9 (C) (I). Decapoda: Brachyura. Part 2. Brill, Leiden, pp. 11–163. https://doi.org/10.1163/9789004190832_004
  7. Galil, B. & Vannini, M. (1990) Research on the coast of Somalia. Xanthidae, Trapeziidae, Carpiliidae, Menippidae (Crustacea Brachyura). Tropical Zoology, 3, 21–56. https://doi.org/10.1080/03946975.1990.10539447
  8. Geller, J., Meyer, C., Parker, M. & Hawk, H. (2013) Redesign of PCR primers for mitochondrial cytochrome c oxidase subunit I for marine invertebrates and application in all-taxa biotic surveys. Molecular Ecology Resources, 13 (5), 851–861. https://doi.org/10.1111/1755-0998.12138
  9. Ho, P.H. & Ng, P.K.L. (2005) On a new species of coral-symbiont crab of the genus Cymo de Haan, 1833 (Crustacea: Decapoda: Brachyura: Xanthidae), from the South China Sea. Zootaxa, 1029 (1), 31–38. https://doi.org/10.11646/zootaxa.1029.1.2
  10. Huelsenbeck, J.P. & Ronquist, F. (2001) MRBAYES: Bayesian inference of phylogeny. Bioinformatics, 17, 754–755. https://doi.org/10.1093/bioinformatics/17.8.754
  11. Klunzinger, C.B. (1913) Die Rundkrabben (Cyclometopa) des Roten Meeres. Abhandlungen der Kaiserlichen Leopoldisch-Carolinischen Deutschen Akademie der Naturforscher, 99 (2), 97–402, pls. 5–11. https://doi.org/10.5962/bhl.title.13073
  12. Jana, T., Lam-Tung, N., Arndt, V.H. & Quang, M.B. (2016) W-iq-tree: a fast online phylogenetic tool for maximum likelihood analysis. Nucleic Acids Research, 44 (W1), W232–W235. https://doi.org/10.1093/nar/gkw256
  13. Lai, J.C.Y., Mendoza, J.C.E., Guinot, D., Clark, P.F. & Ng, P.K.L. (2011) Xanthidae Macleay, 1838 (Decapoda: Brachyura: Xanthoidea) systematics: a multi-gene approach with support from adult and zoeal morphology. Zoologischer Anzeiger, 250 (4), 407–448. https://doi.org/10.1016/j.jcz.2011.07.002
  14. Lasley, R.M. Jr., Smith, A., Paulay, G. & Ng, P.K.L. (2022) Revision of the coral reef crab genus Tweedieia Ward, 1935 (Decapoda: Brachyura: Xanthidae). Journal of Crustacean Biology, 42 (1), ruab081. https://doi.org/10.1093/jcbiol/ruab081
  15. Latreille, P.A. (1812) Crustacés et insectes. In: Milbert, M.J. (Eds.), Voyage pittoresque à l’Île-de-France, au cap de Bonne-Espérance et à l’Ile de Ténériffe, par M. J. Milbert. Peintre embarqué sur la corvette le Géographe, et Directeur des gravures de la partie historique du Voyage aux Terres-Australes. Avec un Atlas, composé de trois cartes géographiques, et de quarante-cinq vues pittoresques déssinéessur les lieux, et gravées en partie par l’auteur. Vol. 2. Nepveu, A., Paris, pp. 270–280.
  16. Latreille, P.A. (1825–1828) Histoire Naturelle. Entomologie, ou Histoire naturelle des Crustacés, des Arachnides et des Insectes. Encyclopédie Méthodique. Vol. 10. Agasse Imprimeur-Libraire, Paris, 833 pp.
  17. Miers, E.J. (1884) Crustacea. In: Report on the zoological collections in the Indo-Pacific ocean during the voyage of H.M.S. “Alert” 1881–1882. Printed by order of the Trustees, London, pp. 178–322 + 513–575, pls. 18–34.
  18. Milne-Edwards, A. (1873) Description de quelques Crustacés nouveaux ou peu connus provenant du Musée de M.C. Godeffroy. Journal of the Museum Godeffroy, 1 (4), 77–88 [1–12], pls. 12–13. https://doi.org/10.5962/bhl.title.10644
  19. Morgan, G.J. (1990) A collection of Thalassinidea, Anomura and Brachyura (Crustacea: Decapoda) from the Kimberley Region of northwestern Australia. Zoologische Verhandelingen, 265, 1–90.
  20. Ng, P.K.L., Guinot, D. & Davie, P.J.F. (2008) Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology, Supplement 17, 1–286.
  21. Ortmann, A. (1893) Die decapoden-krebse des Strassburger Museums, mit besonderer Berücksichtigung der von Herrn Dr. Döderlein bein Japan und bei den Liu-Kiu-Inseln gesammeltern und zur Zeit im Strassburger Museum aufbewahrten Formen. Zoologische Jahrbücher, Abtheilung für Systematik, Geographie und Biologie der Thiere, 7, 411–495, pl. 17.
  22. Patton, W.K. (1994) Distribution and ecology of animals associated with branching corals (Acropora spp.) from the Great Barrier Reef, Australia. Bulletin of Marine Science, 55, 193–211.
  23. Pollock, F.J., Katz, S.M., Bourne, D.G. & Willis, B.L. (2013) Cymo melanodactylus crabs slow progression of white syndrome lesions on corals. Coral Reefs, 32 (1), 43–48. https://doi.org/10.1007/s00338-012-0978-9
  24. Poore, G.C.B. & Ahyong, S.T. (2023) Marine decapod Crustacea: a guide to families and genera of the world. CSIRO Publishing, Clayton South, xii + 916 pp. https://doi.org/10.1071/9781486311798
  25. Pratchett, M., Graham, N.A.J., Sheppard, C.R.C. & Mayes, B. (2010) Are infestations of Cymo melanodactylus killing Acropora cytherea in the Chagos archipelago? Coral Reefs, 29, 941. https://doi.org/10.1007/s00338-010-0654-x
  26. Serène, R. (1984) Crustacés Décapodes Brachyoures de l’Ocèan Indien Occidental et de la Mer Rouge, Xanthoidea: Xanthidae et Trapeziidae. Avec un addendum par Crosnier, A.: Carpiliidae et Menippidae. Faune Tropicale, 24, 1–349, pls. 1–48.
  27. Tamura, K., Stecher, G., Peterson, D., Filipski, A. & Kumar, S. (2013) MEGA6: molecular evolutionary genetics analysis version 6.0. Molecular Biology and Evolution, 30, 2725–2729. https://doi.org/10.1093/molbev/mst197
  28. Thoma, B.P., Danièle, G. & Felder, D.L. (2014) Evolutionary relationships among american mud crabs (Crustacea: Decapoda: Brachyura: Xanthoidea) inferred from nuclear and mitochondrial markers, with comments on adult morphology. Zoological Journal of the Linnean Society, 170, 86–109. https://doi.org/10.1111/zoj.12093