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Published: 2017-11-07

Doryphoribius chetumalensis sp. nov. (Eutardigrada: Isohypsibiidae) a new tardigrade species discovered in an unusual habitat of urban areas of Mexico

Instituto Tecnológico de Chetumal. Departamento de Ingeniería Química y Bioquímica. Av. Insurgentes 330, 77013, Chetumal, Quintana Roo, México.
Instituto Tecnológico de Chetumal. Departamento de Ingeniería Química y Bioquímica. Av. Insurgentes 330, 77013, Chetumal, Quintana Roo, México.
Instituto Tecnológico de Chetumal. Departamento de Ingeniería Química y Bioquímica. Av. Insurgentes 330, 77013, Chetumal, Quintana Roo, México.
Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 213/D, 41125, Modena, Italy.
Tardigrada Mexico biodiversity


A new species, Doryphoribius chetumalensis, is described from specimens collected in the city of Chetumal (Quintana Roo state, Mexico). The species was found in a new and unusual habitat for urban tardigrades, i.e. the soil sediment accumulated on the border of streets. This discovery shows that tardigrades can live in this habitat, demonstrating once again the wide capacity of this taxon to tolerate adverse habitats, and to survive in environments with high anthropogenic impact. Doryphoribius chetumalensis sp. nov. differs from all the other species of the genus in having enlarged and wide bulbous base of the claws. Within Doryphoribius, it belongs to the zappalai group, and differs from the species in this group, not only in the claw shape, but also by the orange body colour, the smooth cuticle, the absence of a tooth in the wall of the buccal ring, and the absence of lunules under the claws. This is the first record of tardigrades, identified to species level, in Quintana Roo state. A taxonomic key of the Doryphoribius genus is also presented.



  1. Beasley, C.W. (1972) Some tardigrades from Mexico. Southwestern Naturalist, 17, 21–29.

    Beasley, C.W. & Pilato, G. (1987) Two new species de Doryphoribius (Eutardigrada, Hypsibiidae) from North America. Animalia, 14, 99–105.

    Beasley, C.W., Kaczmarek, Ł. & Michalczyk, Ł. (2008) Doryphoribius mexicanus, a new species of Tardigrada (Eutardigrada, Hypsibiidae) from Mexico (North America). Proceedings of the Biological Society of Washington, 121, 34–40.

    Bertolani, R., Guidetti, R., Marchioro, T., Altiero, T., Rebecchi, L. & Cesari, M. (2014) Phylogeny of Eutardigrada: New molecular data and their morphological support lead to the identification of new evolutionary lineages. Molecular phylogenetics and evolution, 76, 110–126.

    Biserov, V.I. (1999) Tardigrada of Turkmenistan, with description of three new species. Zoologischer Anzeirger, 238, 157–167.

    de Peluffo, M.C.M., Peluffo, J.R., Rocha, A.M. & Doma, I.L. (2006) Tardigrade distribution in a medium-sized city of central Argentina. Hydrobiologia, 558 (1), 141–150.

    Guidetti, R., Altiero, T. & Rebecchi, L. (2011) On dormancy strategies in tardigrades. Journal of Insect Physiology, 57 (5), 567–576.

    Guidetti, R., Bertolani, R. & Rebecchi, L. (2013b) Comparative analysis of the tardigrade feeding apparatus: adaptive convergence and evolutionary pattern of the piercing stylet system. Journal of Limnology, 72 (1), 24–35.

    Guidetti, R., Peluffo, J.R., Rocha, A.M., Cesari, M. & de Peluffo, M.C.M. (2013a) The morphological and molecular analyses of a new South American urban tardigrade offer new insights on the biological meaning of the Macrobiotus hufelandi group of species (Tardigrada: Macrobiotidae). Journal of Natural History, 47 (37–38), 2409–2426.

    Heinis, F. (1911) Beitrag zur Kenntnis der zentralamericanischen Moosfauna. Revue Suisse de Zoologie, 19, 253–266.

    Kaczmarek, Ł., Gołdyn, B., Wełnicz, W. & Michalczyk, Ł. (2011a) Ecological factors determining Tardigrada distribution in Costa Rica. Journal of Zoological Systematics and Evolutionary Research, 49 (Supplement 1), 78–83.

    Kaczmarek, Ł., Diduszko, D. & Michaelczyk, Ł. (2011b) New records of Mexican Tardigrada. Revista Mexicana de Biodiversidad, 82, 1324–1327.

    Kaczmarek, Ł., Diduszko, D. & Michaelczyk, Ł. (2014) Annotated zoogeography of non-marine Tardigrada. Part I: Central America. Zootaxa, 3763 (1), 1–62.

    Johansson, C., Calloway, S., Miller, W.R. & Linder, E.T. (2011) Are urban and rural tardigrade (Tardigrada) communities distinct and determined by pH: a case study from Fresno County, California. Pan-Pacific Entomologist, 87, 86–97.

    May, R.M. (1948) Nouveau genre et espèce de Tardigrade du Mexique: Haplomacrobiotus hermosillensis. Bulletin de la Société zoologique de France, 73, 95–97.

    Meininger, C.A., Uetz, G.W. & Snider, J.A. (1985) Variation in epiphytic microcommunities (tardigrade-lichen-bryophyte assemblages) of the Cincinnati, Ohio area. Urban Ecology, 9 (1), 45–61.

    Meyer, H.A. (2013) Terrestrial and freshwater Tardigrada of the Americas. Zootaxa, 3747 (1), 1–71.

    Meyer, H.A., Hinton, J.G. & Samletzka, C.A. (2013) Water bears in the Anthropocene: a comparison of urban and woodland tardigrade (Phylum Tardigrada) communities in Southwestern Louisiana, USA. Journal of Limnology, 72 (1), 123–127.

    Michalczyk, Ł. & Kaczmarek, Ł. (2010) Description of Doryphoribius dawkinsi, a new species of Tardigrada (Eutardigrada: Hypsibiidae) from the Costa Rican highlands, with the key to the genus Doryphoribius. Zootaxa, 2393, 46–58.

    Moreno-Talamantes, A., Roszkowska, M., Guayasamín, P.R., Maldonado, J.J.F. & Kaczmarek, Ł. (2015) First record of Dactylobiotus parthenogeneticus Bertolani, 1982 (Eutardigrada: Murrayidae) in Mexico. Check List, 11 (4), 1723.

    Nelson, D., Guidetti, R. & Rebecchi, L. (2015) Phylum Tardigrada. In: Thorp, J., Rogers, D.C. (Eds.), Ecology and General Biology: Thorp and Covich’s Freshwater Invertebrates. Vol. I. 4th Edition. Academic Press (Elsevier Inc.), San Diego, pp. 347–380.

    Peluffo, J.R., Rocha, A.M. & de Peluffo, M.C. (2007) Species diversity and morphometrics of tardigrades from a medium-size city in the Neotropical Region: Santa Rosa (La Pampa, Argentina). Animal Biodiversity and Conservation, 30 (1), 43–51.

    Pérez-Pech, W.A., Cutz-Pool, L.Q., Guidetti R. & Blanco-Piñón, A. (2016) Primer registro genérico de tardígrados, habitantes del área urbana de Chetumal Quintana Roo, México. Entomología mexicana, 3, 912–918.

    Pilato, G. (1971) Su una nova specie di Doryphoribius (Eutardigrada: Hypaibiidae) e considerazioni sulla posizione filogenetica del genere. Bolletino di Zoologia, 38, 145–149.

    Pilato, G. (1981) Analisi di nuovi caratteri nello studio degli Eutardigradi. Animalia, 8, 51–57.

    Pilato, G. (2006) Remarks on the Macrobiotus polyopus group, with description of two new species (Eutardigrada, Macrobiotidae). Zootaxa, 1298, 37–47.

    Pilato, G. & Lisi, O. (2006) Notes on some tardigrades from southern Mexico with description of three new species. Zootaxa, 1236, 53−68.

    Pilato, G. & Binda, M.G. (2010) Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification. Zootaxa, 2404, 1–54.

    Ramazzotti, G. & Maucci, W. (1983) Il Phylum Tardigrada. Memorie dell’Istituto Italiano di Idrobiologia dott. Marco De Marchi, 41, 1–1012.

    Schuster, R.O. (1971) Tardigrada from the Barranca del Cobre, Sinaloa and Chihuahua, Mexico. Proceeding of the Biological Society of Washington, 84 (26), 213–224.

    Séméria, Y. (1981) Recherches sur la faune urbaine et sub-urbaine des tardigrades muscicoles et lichenicoles. 1. Nice-Ville. Bulletin mensuel de la Société linnéenne de Lyon, 50, 231–237.

    Séméria, Y. (1982) Recherches sur la faune urbaine et suburbaine des tardigrades muscicoles et lichenicoles. II. L'espace sub-urbain: les hauteurs orientales de Nice-Ville. Bulletin mensuel de la Société linnéenne de Lyon, 51 (10), 315–328.

    Séméria, Y. (2002) Les Tardigrades des surfaces passantes de la ville de Nice. Recherches sur la faune des Tardigrades urbains et sub-urbains de la ville de Nice (Alpes-Maritimes France). Bulletin mensuel de la Société linnéenne de Lyon, 71 (6), 244–250.

    Spallanzani, L. (1776) Opuscoli di Fisica Animale e Vegetabile. In: di Pietro, P. (Ed.), Spallanzani, Lazzaro. Edizione nazionale delle opere di Lazzaro Spallanzani. Parte quarta: Opere edite direttamente dall’autore. Terzo supplemento: Carteggi. v.5. (1782–1791), 1784. 2001. Mucchi, Modena, pp. 139–160.