Xibalbanus cozumelensis, a new species of Remipedia (Crustacea) from Cozumel, Mexico, and a molecular phylogeny of Xibalbanus on the Yucatán Peninsula

Jørgen Olesen, Kenneth Meland, Henrik Glenner, Peter J. Van Hengstum, Thomas M. Iliffe


A new species belonging to the crustacean class Remipedia is described from an anchialine cave system on the island of Cozumel (Mexico), and is illustrated and compared morphologically and molecularly (CO1 and 16S) with closely related taxa. Xibalbanus cozumelensis sp. nov., the first remipede described from Cozumel, is morphologically similar to Xibalbanus tulumensis (Yager, 1987) from the Yucatán Peninsula, but the two species are genetically separate from each other (about 10% in CO1). A phylogenetic (Bayesian) analysis of Yucatán remipede populations based on CO1 and 16S placed them in a monophyletic Xibalbanus (in Xibalbanidae fam. nov.), with X. cozumelensis as most closely related to X. tulumensis. The Yucatán Peninsula and Cozumel have been separate since approx. early Cenozoic (~65 Ma), which suggests allopatric speciation for X. cozumelensis sp. nov. and X. tulumensis. However, the comparatively low genetic divergence between the two species may indicate that there has been gene flow between ‘mainland’ Yucatán and Cozumel long after the geological separation of the two landmasses, e.g., in cave systems under the sea bed, either continuously or sporadically, for example during the Last Glacial Maximum when the sea level was about 120 m lower than today.


CO1; 16S; genetic distance; anchialine cave

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DOI: https://doi.org/10.5852/ejt.2017.316


Alvarez F., Iliffe T.M., Benitez S., Brankovits D. & Villalobos J.L. 2015. New records of anchialine fauna from the Yucatan Peninsula, Mexico. Check List 11: 1–10. https://doi.org/10.15560/11.1.1505

Carpenter J.H. 1999. Behavior and ecology of Speleonectes epilimnius (Remipedia, Speleonectidae) from surface water of an anchialine cave on San Salvador Island, Bahamas. Crustaceana 72 (8): 979–991. https://doi.org/10.1163/156854099503889

Chávez G., Candela J. & Ochoa J. 2003. Subinertial flows and transports in Cozumel Channel. Journal of Geophysical Research 108: 1–11. https://doi.org/10.1029/2002JC001456

Daenekas J., Iliffe T.M, Yager J. & Koenemann S. 2009. Speleonectes kakuki, a new species of Remipedia (Crustacea) from anchialine and sub-seafloor caves on Andros and Cat Island, Bahamas. Zootaxa 2016: 51–66. https://doi.org/10.15468/c8ooey

Dillon W.P. & Vedder J.G. 1973, Structure and development of the continental margin of British Honduras. Geological Society of America Bulletin 84: 2713–2732.

Edgecombe G.D., Richter S. & Wilson G.D.F. 2003. The mandibular gnathal edges: Homologous structures throughout Mandibulata? African Invertebrates 44: 115–135.

Ertas B., Reumont B.M. von, Wägele J.-W., Misof B. & Burmester T. 2009. Hemocyanin suggests a close relationship of Remipedia and Hexapoda. Molecular Biology and Evolution 26 (12): 2711–2718.

Hengstum P.J. van & Scott D.B. 2011. Ecology of foraminifera and habitat variability in an underwater cave: distinguishing anchialine versus submarine cave environments. Journal of Foraminiferal Research 41 (3): 201–229. https://doi.org/10.2113/gsjfr.41.3.201

Hoenemann M., Neiber M.T., Koenemann S., Humphreys W.F., Iliffe T.M., Li D., Schram F.R. & Koenemann S. 2013. Phylogenetic analysis and systematic revision of Remipedia (Nectiopoda) from Bayesian analysis of molecular data. Journal of Crustacean Biology 33: 603–619. https://doi.org/10.1163/1937240X-00002179

Koenemann S., Iliffe T. & Ham J. van der. 2003. Three new sympatric species of Remipedia (Crustacea) from Great Exuma Island, Bahamas Islands. Contributions to Zoology 72: 227–252.

Koenemann S., Schram F.R. & Iliffe T.M. 2006. Trunk segmentation patterns in Remipedia. Crustaceana 79: 607–631. https://doi.org/10.1163/156854006777584296

Koenemann S., Bloechl A., Martínez A., Iliffe T.M., Hoenemann M. & Oromí P. 2009. A new, disjunct species of Speleonectes (Remipedia, Crustacea) from the Canary Islands. Marine Biodiversity 39: 215–225. https://doi.org/10.1007/s12526-009-0021-8

Knowlton N. & Weigt L.A. 1998. New dates and new rates for divergence across the Isthmus of Panama. Proceedings of the Royal Society B 265: 2257–2263. https://doi.org/10.1098/rspb.1998.0568

Knowlton N., Weigt L.A., Solórzano L.A., Mills D.K. & Bermingham E. 1993. Divergence in proteins, mitochondrial DNA and reproductive compatibility across the Isthmus of Panama. Science 260: 1629–1632.

Merrit T.J.S., Shi L., Chase M.C., Rex M.A., Etter R.J, Quattro J. M. 1998. Universal cytochrome b primers facilitate intraspecific studies in molluscan taxa. Molecular Marine Biology and Biotechnology 7 (1): 7–11.

Neiber M.T., Hartke T.R., Stemme T., Bergmann A., Rust J., Iliffe T.M. & Koenemann S. 2011. Global biodiversity and phylogenetic evaluation of Remipedia (Crustacea). PLoS ONE 6: 1–12. https://doi.org/10.1371/journal.pone.0019627

Neiber M.T., Hansen F.C., Iliffe T.M., Gonzalez B.C. & Koenemann S. 2012. Molecular taxonomy of Speleonectes fuchscockburni, a new pseudocryptic species of Remipedia (Crustacea) from an anchialine cave system on the Yucatán Peninsula, Quintana Roo, Mexico. Zootaxa 3190: 31–46. https://doi.org/10.15468/ztlpt9

Nylander J.A.A. 2004. MrModeltest v2.3. Program distributed by the author.

Rambaut A., Suchard M.A., Xie D. & Drummond A.J. 2014. Tracer v. 1.6. Available from http://beast.bio.ed.ac.uk/Tracer [accessed 27 Apr. 2017].

Reumont B.M. von & Burmester T., 2010. Remipedia and the evolution of hexapods. eLS. https://doi.org/10.1002/9780470015902.a0022862

Rodríguez F., Oliver J.L., Marín A. & Medina J.R. 1990. The general stochastic model of nucleotide substitution. Journal of Theoretical Biology 142: 485–501. https://doi.org/10.1016/S0022-5193(05)80104-3

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

Smart P.L., Beddows P.A., Coke J., Doerr S., Smith S. & Whitaker F.F. 2006. Cave development on the Caribbean coast of the Yucatán Peninsula, Quintana Roo, Mexico. In: Harmon R.S. & Wicks C. (eds) Perspectives on karst geomorphology, hydrology, and geochemistry – A tribute volume to Derek C. Ford and William B. White: 105–128. Geological Society of America Special Paper 404, Boulder (CO), USA. https://doi.org/10.1130/2006.2404(10)

Spaw R.H. 1978. Late Pleistocene carbonate bank deposition: Cozumel Island, Quintana Roo, Mexico. Gulf Coast Association of Geological Societies Transactions 28: 601–619.

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

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.

Uchupi E. 1973. Eastern Yucatán continental margin and western Caribbean tectonics. Bulletin of the American Association of Petroleum Geologists 57: 1075–1095.

Ward W.C. 1997. Geology of coastal islands, northeastern Yucatan Peninsula. In: Vacher H.L. & Quinn T. (eds) Geology and Hydrogeology of Carbonate Islands: 275–298. Developments in Sedimentology 54, Elsevier, Amsterdam.

Weidie A.E. 1989. Geology of the Yucatan Platform. In: Ward E.C., Weidie A.E. & Back W. (eds) Geology and Hydrogeology of the Yucatan and Quaternary Geology of the northeastern Yucatan Peninsula: 1–19. New Orleans Geologic Society, New Orleans.

Yager J. 1981. Remipedia, a new class of Crustacea from a marine cave in the Bahamas. Journal of Crustacean Biology 1 (3): 328–333. https://doi.org/10.2307/1547965

Yager J. 1987. Speleonectes tulumensis n. sp. (Crustacea: Remipedia) from two anchialine cenotes of the Yucatan Peninsula, Mexico. Stygologia 3: 160–166.

Yager J. 2013. Speleonectes cokei, new species of Remipedia (Crustacea: Speleonectidae) from a submerged ocean cave near Caye Chapel, Belize. Zootaxa 3710: 354–362. https://doi.org/10.11646/zootaxa.3710.4.4

Yager J. & Carpenter J.H. 1999. Speleonectes epilimnius new species (Remipedia , Speleonectidae) from surface water of an anchialine cave on San Salvador Island, Bahamas. Crustaceana 72: 965–977. https://doi.org/10.1163/156854099503861

Yañez-Mendoza G., Zarza-González E. & Mejía-Ortíz L.M. 2007. Sistemas anquihalinos. In: Mejía-Ortíz L.M. (ed.) Biodiversidad acuática de la Isla de Cozumel: 49–70. Universidad de Quintana Roo-CONABIO, Plaza y Valdés, Mexico.


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