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Issue: Vol. 2267 No. 1: 19 Oct. 2009
Type: Articles
Published: 2009-10-19
DOI: 10.11646/zootaxa.2267.1.4
Page range: 55–64
Abstract views: 55
PDF downloaded: 1

Minibiotus xavieri, a new species of tardigrade from the Parque Biologico de Gaia, Portugal (Eutardigrada: Macrobiotidae)

Eco-Ethology Research Unit (FCT-331/94) and Department of Zoology and Anthropology, Faculty of Sciences, University of Porto. R. Campo Alegre s/n, FC4, 4169-007 Porto, Portugal
Dipartimento di Biologia Animale “Marcello La Greca”, Università di Catania Via Androne 81, 95124 Catania, Italy
Eco-Ethology Research Unit (FCT-331/94) and Department of Zoology and Anthropology, Faculty of Sciences, University of Porto. R. Campo Alegre s/n, FC4, 4169-007 Porto, Portugal
Dipartimento di Biologia Animale “Marcello La Greca”, Università di Catania Via Androne 81, 95124 Catania, Italy
Tardigrada Minibiotus xavieri sp. nov. Eutardigrada Parque Biológico de Gaia Portugal Europe

Abstract

A new tardigrade, Minibiotus xavieri sp. nov., is described from lichen and moss samples collected in Parque Biologico de Gaia, Avintes, Portugal. The new species has variously shaped pores forming transverse bands around the cuticle; granulation on legs absent. Peribuccal lamellae absent, peribuccal papulae present as in all species of Minibiotus. Buccal tube narrow with an anterior bend; pharyngeal bulb with apophyses, three small macroplacoids and microplacoid. Minibiotus xavieri sp. nov. differs from the species of the genus with a similar cuticular ornamentation (with pores of variable shape forming transverse bands) (M. eichorni Michalczyk & Kaczmarek, 2004, M. orthofasciatus Fontoura, Pilato, Lisi & Morais, 2009, M. vinciguerrae Binda & Pilato, 1992, M. furcatus (Ehrenberg, 1859)) in some qualitative or quantitative characters of the bucco-pharyngeal apparatus, and/or claws and of the eggs. The new species is also similar to two species today ascribed to the genus Macrobiotus but whose systematic position needs to be better analyzed, Macrobiotus lazzaroi Maucci 1986 and Macrobiotus pseudofurcatus Pilato, 1972. Minibiotus xavieri sp. nov. differs from them in some characters of the animal (narrower buccal tube, some characters of the claws) and of the eggs.

References

  1. Arcidiacono, R. (1962) Contributo alla conoscenza dei Tardigradi dei Monti Nebrodi e descrizione di una nuova specie di Itaquascon. Bollettino delle Sedute dell’Accademia Gioenia di Scienze Naturali, Catania, VII, XI, 123–134.

    Bertolani, R. (1981) The taxonomic position of some eutardigrades. Bollettino di Zoologia, 48, 197–203.

    Bertolani, R. & Kristensen, R. (1987) New records of Eohypsibius nadjae Kristensen, 1982, and revision of the taxonomic position of two genera of Eutardigrada (Tardigrada). In: Bertolani, R., ed.: Biology of Tardigrades. Selected Symposia and Monographs, U.Z.I., 1. Mucchi, Modena, 359–372.

    Binda, M.G. & Pilato, G. (1971) Nuove osservazione sui Tardigradi delle Isole Eolie. Bollettino delle Sedute dell’Accademia Gioenia di Scienze Naturali, Catania, 10, 766–774.

    Binda, M.G. & Pilato, G. (1992) Minibiotus furcatus, nuova posizione sistematica per Macrobiotus furcatus Ehrenberg, 1859 e descrizione di due nuove specie (Eutardigrada). Animalia, 19, 111–120.

    Claxton, S.K. (1998) A revision of the Genus Minibiotus (Tardigrada: Macrobiotidae) with descriptions of eleven new species from Australia. Records of the Australian Museum, 50, 125–160.

    Cuénot, L. (1932) Tardigrades. In: Faune de France, Paris, 24, 1–96.

    Dastych, H. (1972) Isohypsibius weglarskae sp. n. a new species of Tardigrada from Poland. Bulletin de l’Académie Polonaise des Sciences, 20, 11, 761–762.

    Dastych, H. (1993) A new genus and four new species of semiterrestrial water-bears from South Africa (Tardigrada). Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 90, 175–186.

    Degma, P. & Guidetti, R. (2007) Notes to the current checklist of tardigrades. Zootaxa, 1579, 41–53.

    Degma, P., Bertolani, R. & Guidetti, R. (2009) Actual checklist of Tardigrada species (ver. 7, 30-06-2009). Available from http://www.tardigrada.modena.unimo.it/miscellanea/Actual checklist of Tardigrada.pdf

    Doyère, L.M. (1840) Mémoire sur les Tardigrades. I. Annales des Sciences Naturelles, Paris, Série 2, 14, 269–362.

    Ehrenberg, C.G. (1859) Beitrag zur Bestimmung des stationaren mikroskopischen Lebens in bis 20,000 Fufs Alpenhohe. Abheit Akademie der Wissenschaften, Berlin, 429–456.

    Fontoura, P., Pilato, G., Lisi, O. & Morais, P. (2009) Tardigrades from Portugal: four new records and description of two new species. Zootaxa, 2030, 21–38.

    Guidetti, R. & Bertolani, R. (2005) Tardigrade taxonomy: an update check list of the taxa and a list of characters for their identification. Zootaxa, 845, 1–46.

    Guidetti, R., Bertolani, R. & Degma, P. (2007) New taxonomic position of several Macrobiotus species (Eutardigrada, Macrobiotidae). Zootaxa, 1471, 61–68.

    Horning, D.S., Schuster, R.O. & Grigarick, A.A. (1978) Tardigrada of New Zealand. New Zealand Journal of Zoology, 5, 185–280.

    Iharos, G. (1964) Neuere Beiträge zur Kenntnis der Tardigraden-Fauna Ungarns. V. Opuscula Zoologica, Budapest, V, 1, 57–67.

    Marcus, E. (1936) Tardigrada. In: Das Tierreich, 66, 1–340. Ed. Walter de Gruyter, Berlin und Leipzig.

    Maucci, W. (1973) Macrobiotus spallanzanii sp. nov. and redescription of Macrobiotus tenuis Binda and Pilato (Tardigrada, Macrobiotidae). Bollettino di Zoologia, 40, 261–267.

    Maucci, W. (1986) Tardigrada. Fauna d’Italia, Vol 24, Edizione Calderini, Bologna, 388 pp.

    Maucci, W. & Durante-Pasa, M.V. (1984a) I Tardigradi della fauna Portoghese. Anais da Faculdade de Ciências do Porto, 65, 1–4, 127–174.

    Maucci, W. & Durante-Pasa, M.V. (1984b) Macrobiotus lusitanicus sp. nov., nuova specie di Eutardigrado del Portogallo nord-occidentale (Tardigrada, Macrobiotidae). Bollettino del Museo Civico di Storia Naturale di Verona, 11, 319–326.

    Michalczyk, L. & Kaczmarek, L. (2004) Minibiotus eichorni, a new species of Tardigrada (Eutardigrada: Macrobiotidae) from Peru. Annales Zoologici (Warszawa), 54, 4, 673–676.

    Morais, P. & Fontoura, P. (2009) Water bears (Tardigrada) of the Parque Biológico de Gaia, 317. IJUP 0, 2nd Meeting of Young Researchers at UP, Abstract booklet, 1–379.

    Murray, J. (1907) Arctic tardigrada, collected by Wm. S. Bruce. Transactions of the Royal Society of Edinburgh, 45, 3, 25, 669–681.

    Murray, J. (1911) Arctiscoidae. Proceedings of the Royal Irish Academy, 31, 37, 1–16.

    Pilato, G. (1969) Evoluzione e nuova sistemazione degli Eutardigradi. Bollettino di Zoologia, 36, 3, 827–845.

    Pilato, G. (1972) Prime osservazioni sui Tardigradi delle Isole Egadi. Bollettino delle Sedute dell’Accademia Gioenia di Scienze Naturali, Catania, 11, 5–6, 111–124.

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

    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. & Lisi, O. (2006) Three new species of eutardigrades from the Seychelles. New Zealand Journal of Zoology, 33, 39–48.

    Plate, L. (1889) Beiträge zur Naturgeschichte der Tardigraden. Zoologische Jahrbücher, Anatomie 3, 487–550.

    Ramazzotti, G. (1959) Il gruppo dell’Echiniscus viridis con la nuova specie Echiniscus perviridis e Macrobiotus pustulatus, altra nuova specie (Tardigrada). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Scienze Naturali in Milano, 98, 303-309.

    Ramazzotti, G. (1962) Il Phylum Tardigrada. Memorie dell’Istituto Italiano di Idrobiologia Dott. Marco De Marchi, 14, 1–595.

    Richters, F. (1902) Beiträge zur Kenntnis der Fauna und Umgebung von Frankfurt a. M. Bericht über die senckenbergische Naturforschunde Gesellschaft, 3–21.

    Schultze, C.A.S. (1834) Macrobiotus hufelandi animal e crustaceorum classe novum reviviscendi post diuturnam asphyxiam et ariditatem potens, etc. 8, C. Curths, Berlin.

    Schuster, R.O., Nelson, D., Grigarick, A.A. & Christenberry, D. (1980) Systematic criteria of the Eutardigrada. Transactions of the American Microscopical Society, 99, 284–303.

    Thulin, G. (1928) Über die Phylogenie und das System der Tardigraden. Hereditas, 207–266.