Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2017-07-12
Page range: 324–334
Abstract views: 164
PDF downloaded: 6

Bryochoerus liupanensis sp. nov. and Pseudechiniscus chengi. sp. nov. (Tardigrada: Heterotardigrada: Echiniscidae) from China

College of Life Sciences of Shaanxi Normal University, Xi’an 710119, China
College of Life Sciences of Shaanxi Normal University, Xi’an 710119, China
College of Life Sciences and Food Engineering of Shaanxi Xueqian Normal University, Xi’an 710100, China
College of Life Sciences of Shaanxi Normal University, Xi’an 710119, China
College of Life Sciences of Shaanxi Normal University, Xi’an 710119, China
Tardigrada Invertebrate water bear taxonomy Liupan Mountains

Abstract

Two new species from China, Bryochoerus liupanensis sp. nov. and Pseudechiniscus chengi sp. nov. (Tardigrada: Heterotardigrada: Echiniscidae), are reported. Bryochoerus liupanensis sp. nov. is characterized by median plates 1 and 2 divided into four parts while median plate 3 is divided into three parts, and by two lateral plates on each side of all median plates. The new species differs from Bryochoerus intermedius in having a different cuticular sculpture and different lateral plates. Pseudechiniscus chengi sp. nov. is characterized by: head plate faceted, cephalic papilla dome-shaped, pseudosegmental plate with a longitudinal median fold, all plates including the dorsal plates and plates on legs with ornamentation composed of dense round dots, differing in size, and lacking striae between the dots. Pseudechiniscus chengi sp. nov. is most similar to Pseudechiniscus santomensis but differs by: lacking striae between the round dots on dorsal plates, lacking the tiny projections on the caudal margin of pseudosegmental plate, and the divided pseudosegmental plate.

 

References

  1. Fontoura, P. & Morais, P. (2011) Assessment of traditional and geometric morphometrics for discriminating cryptic species of the Pseudechiniscus suillus complex (Tardigrada, Echiniscidae). Journal of Zoological Systematics and Evolutionary Research, 49 (Supplement 1), 26–33.
    https://doi.org/10.1111/j.1439-0469.2010.00594.x

    Fontoura, P., Pilato, G. & Lisi, O. (2008) Echiniscidae (Tardigrada, Heterotardigrada) from Faial and Pico Islands, the Azores, with the description of two new species. Zootaxa, 1693, 49–61.

    Fontoura, P., Pilato, G. & Lisi, O. (2010) First record of Tardigrada from São Tomé (Gulf of Guinea, Western Equatorial Africa) and description of Pseudechiniscus santomensis sp. nov. (Heterotardigrada: Echiniscidae). Zootaxa, 2564, 31–42.

    Gao, X.Y., Li, X.C. & Wang, L.Z. (2012) Taxonomic Composition of the Chinese terrestrial-freshwater tardigrades. Journal of Anhui Agricultural Science, 40 (18), 9721–9725.

    Iharos, G. (1969) Einige Angaben zur Tardigraden-Fauna Vietnams. Opuscula Zoologica Budapest, 9 (2), 273–277.

    Jørgensen, A. (2000) Cladistic analysis of the Echiniscidae Thulin, 1928 (Tardigrada: Heterotardigrada: Echiniscoidea). Steenstrupia, 25, 11–23.

    Jørgensen, A., Møbjerg, N. & Kristensen, R.M. (2011) Phylogeny and evolution of the Echiniscidae (Echiniscoidea, Tardigrada)–an investigation of the congruence between molecules and morphology. Journal of Zoological Systematics and Evolutionary Research, 49 (Supplement 1), 6–16.
    https://doi.org/10.1111/j.1439-0469.2010.00592.x

    Kaczmarek, Ł., Zawierucha, K., Smykla, J. & Michalczyk, Ł. (2012) Tardigrada of the Revdalen (Spitsbergen) with the descriptions of two new species: Bryodelphax parvuspolaris (Heterotardigrada) and Isohypsibius coulsoni (Eutardigrada). Polar Biology, 35, 1013–1026.
    https://doi.org/10.1007/s00300-011-1149-0

    Kristensen, R.M. (1987) Generic revision of the Echiniscidae (Heterotardigrada), with a discussion of the origin of the family. In: Bertolani, R. (Ed.), Biology of tardigrades. Selected symposia and monographs U.Z.I. Vol. 1. Mucchi, Modena, pp. 261–335.

    Marcus, E. (1927) Spinnentiere oder Arachnoidea. IV. Bärtierchen (Tardigrada). In: Dahl, F. (Ed.), Die Tierwelt Deutschlands und der angrenzenden Meeresteile nach ihren Merkmalen und nach ihrer Lebensweise. Gustav Fischer, Jena, pp. 1–230.

    Marcus, E. (1936) Tardigrada. In: Schulze, F.E., Kukenthal, W. & Heider, K. (Eds.), Das Tierreich. Vol. 66. Walter de Gruyter, Berlin und Leipzig, pp. 1–340.

    Michalczyk, Ł. & Kaczmarek, Ł. (2006) Revision of the Echiniscus bigranulatus group with a description of a new species Echiniscus madonnae (Tardigrada: Heterotardigrada: Echiniscidae) from South America. Zootaxa, 1154, 1–26.

    Michalczyk, Ł. & Kaczmarek, Ł. (2013) The Tardigrada Register: a comprehensive online data repository for tardigrade taxonomy. Journal of Limnology, 72 (Supplement 1), 175–181.
    https://doi.org/10.4081/jlimnol.2013.s1.e22

    Murray, J. (1910) Part V Tardigrada. In: British Antarctic Expedition 1907–, under the com-mand of Sir E. H. Shackleton, C.V.O. Reports on the scientific investigations. Vol. 1. Biology. William Heinemann Publisher, London, pp. 83–187.

    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., Napolitano, A. & Moncada, E. (2001) Notes on South American tardigrades with the description of two new species: Pseudechiniscus spinerectus and Macrobiotus danielae. Tropical Zoology, 14, 223–231.
    https://doi.org/10.1080/03946975.2001.10531154

    Ramazzotti, G. & Maucci, W. (1983) Il Phylum Tardigrada. 3rd ed. Memorie dell’Isituto Italiano di Idrobiologia, 41, 1–1012. [CW Beasley, English translation]

    Richters, F. (1908) Beitrag zur Kenntnis der Moosfauna Australiens und der Inseln des Pacifischen Oceans. Zoologische Jahrbücher, Abteilung für Systematik, Geographie und Biologie der Tiere, Jena, 26, 196–213.

    Richters, F. (1926) Tardigrada. In: Kukentahl, W. & Krumbach, T. (Eds.), Handbuch der Zoologie. Vol. 3. Walter de Gruyter & Co., Berlin, pp. 1–68.

    Thulin, G. (1911) Beitrag zur Kenntnis der Tardigradenfauna Schwedens. Arkiv for Zoologi Stockholm, 7, 1–60.

    Thulin, G. (1928) Über die phylogenie und das system der tardigraden. Hereditas, 11, 207–266.
    https://doi.org/10.1111/j.1601-5223.1928.tb02488.x

    Vecchi, M., Cesari, M., Bertolani, R., Jönsson, K.I., Rebecchi, L. & Guidetti, R. (2016) Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea. Invertebrate Systematics, 30, 303–322.
    https://doi.org/10.1071/IS15033

    Wang, L. (2009) Tardigrades from Yunnan-Guizhou Plateau (China) with description of two new species in the genera Mixibius (Eutardigrada: Hypsibiidae) and Pseudechiniscus (Heterotardigrada: Echiniscidae). Journal of Natural History, 43 (41), 2553–2570.
    https://doi.org/10.1080/00222930903221547

    Węglarska, B. (1962) Die Tardigraden Vietnams. Acta Societatis Zoologicae Bohemoslovenicae, XXVI (4), 300–307.