Hydrobiologia

, Volume 144, Issue 3, pp 193–210 | Cite as

Paramesochra T. Scott, 1892 (Copepoda, Harpacticoida): a revised key, including a new species from the SW Dutch coast and some remarks on the phylogeny of the Paramesochridae

  • Rony Huys
Article

Abstract

Paramesochra mielkei sp.n. is described and figured from the interstices of subtidal sandy sediments off the SW Dutch coast. Kunz' (1981) phylogenetic scheme of the Paramesochridae Lang, 1948 is re-examined and it is suggested that the family comprises two phyletic lines which originated early in paramesochrid evolution. Translation into Linnean hierarchies implies the establishment of two new sub-families. Within the primitive Diarthrodellinae subfam. n., Tisbisoma Bozic, 1964 is ancestral to Diarthrodella Klie, 1949 s.l. and Rossopsyllus Soyer, 1975. Remanea Klie, 1929 is transferred to the Paramesochrinae subfam. n. which comprises the genera of both the Scottopsyllus- and the Paramesochra-group. The aberrant genus Caligopsyllus Kunz, 1975, standing close to Apodopsyllus, is removed from the Paramesochra-group. P. brevifurca Galhano, 1970 is splitted into two subspecies and replaced in the genus Paramesochra. An attempt is made to assess the phyletic interrelationships of the Paramesochra-species and the resulting cladogram splits the genus into four species-groups. P. mielkei sp.n. is referred to the dubia-group and seems to be closely related to P. borealis Geddes, 1981. Finally, an amended diagnosis and a revised key to the species of the genus Paramesochra are presented.

Keywords

harpacticoids North Sea Paramesochra mielkei sp.n. phylogeny Diarthodellinae subfam. n. Paramesochrinae subfam. n. species key 

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References

  1. Ax, P., 1984. Das phylogenetische System. Gustav Fischer Verlag. Stuttgart. 349 pp.Google Scholar
  2. Bodin, P., 1984. Densité de la méiofaune et peuplements de copépodes harpacticoides en Baie de Douarnenez (Finistère). Ann. Inst. océanogr., Paris 60: 5–17.Google Scholar
  3. Bowman, T. E., 1971. The case of the nonubiquitous telson and the fraudulent furca. Crustaceana 21: 165–175.Google Scholar
  4. Boxshall, G. A., 1979. The planktonic copepods of the northeastern Atlantic Ocean: Harpacticoida, Siphonostomatoida and Mormonilloida. Bull. Br. Mus. nat. Hist. (Zool.) 35: 201–264.Google Scholar
  5. Cottarelli, V., 1971. Paramesochridae (Copepoda, Harpacticoida) di acque interstitiali littorali italiane. Riv. Idrobiol. 10: 19–32.Google Scholar
  6. Coull, B. C., 1977. Marine flora and fauna of the Northeastern United States. Copepoda: Harpacticoida. NOAA Technical Report NMFS Circular 399: 1–48.Google Scholar
  7. Coull, B. C. & E. W. Hogue, 1978. Revision of Apodopsyllus (Copepoda, Harpacticoida), including two new species and a redescription. Trans. Amer. Microsc. Soc. 97: 149–159.Google Scholar
  8. Galhano, M. H., 1970. Contribuçao para o conhecimento da fauna intersticial em Portugal. Pub. Inst. Zool. ‘Dr. A. Nobre’ 110: 1–207.Google Scholar
  9. Gould, S. J., 1977. Ontogeny and phylogeny. The Belknap Press of Harvard University Press, Cambridge, Mass. 501 pp.Google Scholar
  10. Heip, C., R. Herman & M. Vincx, 1983. Subtidal meiofauna of the North Sea: a review. Biol. Jb. Dodonaea 51: 116–170.Google Scholar
  11. Kunz, 1962. Revision der Paramesochridae (Crustacea Copepoda). Kiel. Meeresforsch. 18: 245–257.Google Scholar
  12. Kunz, H., 1975. Copepoda Harpacticoidea aus dem Litoral des südlichen Afrika. I. Teil. Kiel. Meeresforsch. 31: 179–212.Google Scholar
  13. Kunz, H., 1981. Beitrag zur Systematik der Paramesochridae (Copepoda, Harpacticoida) mit Beschreibung einiger neuer Arten. Mitt. Zool. Mus. Univ. Kiel 1(8): 2–33.Google Scholar
  14. Kunz, H., 1983. Harpacticoida (Crustacea, Copepoda) aus den Litoral der Azoren. Arquipelago 4: 117–208.Google Scholar
  15. Kunz, H., 1984. Systematik der Familie Tetragonicipitidae Lang (Crustacea, Harpacticoida). Mitt. Zool. Mus. Univ. Kiel 2(2): 33–48.Google Scholar
  16. Lang, K., 1948. Monographie der Harpacticiden. Håkan Ohlsson, Lund, 1682 pp.Google Scholar
  17. Lang, K., 1965. Copepoda Harpacticoidea from the Californian coast. K. svenska Vetensk Akad. Handl. 10: 1–560.Google Scholar
  18. Mielke, W., 1975. Systematik der Copepoda eines Sandstrandes der Nordseeinsel Sylt. Mikrofauna Meeresboden 52: 1–134.Google Scholar
  19. Mielke, W., 1984a. Interstitielle Fauna von Galapagos. XXXI. Paramesochridae. Mikrofauna Marina 1: 63–147.Google Scholar
  20. Mielke, W., 1984b. Einige Paramesochridae (Copepoda) von Panama. Spixiana 7: 217–243.Google Scholar
  21. Mielke, W., 1984c. Some remarks on the mandible of the Harpacticoida (Copepoda). Crustaceana 46: 257–260.Google Scholar
  22. Mielke, W., 1985. Diarthrodella chilensis sp. n. und Rossopsyllus kerguelenensis quellonensis subsp. n. (Copepoda, Paramesochridae) von Chile. Zool. Scr. 14: 45–55.CrossRefGoogle Scholar
  23. Soyer, J., 1975. Harpacticoides (Crustacés Copépodes) de l'archipel de Kerguélen. I. Quelques formes mésopsammiques. Bull. Mus. natn. Hist. nat. Paris, sér. 3, nr. 244, Zoologie 168: 1169–1223.Google Scholar
  24. Tiemann, H., 1984. Is the taxon Harpacticoida a monophyletic one? Crustaceana suppl. 7: 47–59.Google Scholar
  25. Willems, K. A., 1981. Boreopontia heipi n.g., n. sp. An interstitial harpacticoid (Copepoda) from the Southern Bight of the North Sea. Biol. Jb. Dodonaea 49: 200–209.Google Scholar
  26. Willems, K. A., & D. Claeys, 1982. Syrticola flandricus n.g., n. sp., a harpacticoid copepod from the Southern Bight of the North Sea. Crustaceana 43: 1–8.Google Scholar

Copyright information

© Dr W. Junk Publishers 1987

Authors and Affiliations

  • Rony Huys
    • 1
  1. 1.Marine Biology Section, Instituut voor DierkundeRijksuniversiteit GentGentBelgium

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