Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 2500 No. 1: 9 Jun. 2010
Type: Articles
Published: 2010-06-09
DOI: 10.11646/zootaxa.2500.1.2
Page range: 39–57
Abstract views: 77
PDF downloaded: 2

Two new interstitial species of the genus Parapolycope (Crustacea: Ostracoda) from central Japan

Department of Environment and Energy System, Shizuoka University, Oya 836, Suruga-ku, Shizuoka, 422-8529 Japan
Department of Environment and Energy System, Shizuoka University, Oya 836, Suruga-ku, Shizuoka, 422-8529 Japan
Crustacea Myodocopa Halocyprida Cladocopina River mouth copulatory duct

Abstract

Two new interstitial cladocopid ostracods are described from central Japan: Parapolycope oligohalina sp. nov, and Parapolycope spiralis sp. nov. These two species are the third and forth records of the genus Parapolycope Klie, 1936, respectively. Since P. oligohalina sp. nov. inhabits river mouth environments with low salinity at low tides, the wide tolerance to salinity in the species is shown. Myodocopan Ostracoda have so far been considered as a pure marine taxa. The occurrence of P. oligohalina sp. nov. indicates that a few myodocopan ostracods can live in oligohaline environments. The carapace surface covered with puncta of varying size is a unique character of P. oligohalina sp. nov. P. spiralis sp. nov. exhibits a spiral structure in both male copulatory duct and female spermatheca as specific characters. A key to the genera of the Polycopinae is presented.

References

  1. Chavtur, V.G.. (1977) [Ostracods of the Family Polycopidae (Cladocopa) of the Kuril Islands] In: Fauna of the Intertidal Zone of the Kurile Islands. Nauka, Moskow, pp. 144–171. [In Russian]

    Chavtur, V.G.. (1981) [On the systematic position of the modern Ostracoda in the family Polycopidae (Ostracoda, Cladocopina)] Transactions of the Institute of Oceanology, Academy of Science of the U. S. S. R., 115, 53–60. [In Russian].

    Dana, J.D. (1852) Tribe III: Cyproidea = Ostracoda. In: Crustacea. United States Exploring Expedition during the Years 1838-1842, under the Command of Charles Wilkes, U. S. N. C. Sherman, Philadelphia, 13(2), pp. 1277–1304.

    Hartmann, G.. (1959) Zur Kenntnis der lotischen Lebensbereiche der pazifischen Küste von El Salvador unter besonderer Berücksichtigung seiner Ostracodenfauna. Kieler Meeresforschungen, 15, 187–241.

    Hartmann, G. (1974) Zur Kenntnis des Eulitorals der afrikanischen Westküste zwischen Angola und Kap der Guten Hoffnung und der afrikanischen Ostküste von Südafrika und Moçambique unter besonderer Berücksichtigung der Polychaeten und Ostracoden. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 69, 229–520.

    Horne, D.J., Cohen, A.C. & Martens, K. (2002) Taxonomy, morphology and biology of Quaternary and living Ostracoda. In: Holmes, J.A. & Chivas, A.R. (Eds), The Ostracoda. Applications in Quaternary Research. American Geophysical Union, Washington D. C., pp. 5–36.

    Klie, W. (1936) Zur Kenntnis der Ostracoden–Familie Polycopidae. Zoologische Jahrbücher. Abteilung für Systematik Ökologie und Geographie der Tiere, 68, 517–532.

    Kornicker, L.S. & Iliffe, T.M. (1989) Ostracoda (Myodocopina, Cladocopina, Halocypridina) mainly from anchialine caves in Bermuda. Smithsonian Contributions to Zoology, 475, 1–88.

    Sars, G..O. (1866) Oversigt af Norges marine Ostracoder. Forhandlinger i Videnskabs-Selskabet i Christiania, 8, 1–130. [Preprint, 1865.]