Cheliped transformation in the swimming pea crab Tritodynamia horvathi Nobili

DOI Web Site Web Site 1 Citations 9 References

Bibliographic Information

Other Title
  • オヨギピンノのはさみ脚の形態変化
  • Cheliped transformation in the swimming

Search this article

Abstract

Previously, the species Tritodynamia intermedia has been distinguished from T. horvathi based on the number of teeth on the dactylus of the cheliped. However, it was reviewed that T. intermedia is synonymous with T. horvathi. The number of teeth on the chelipeds of T. horvathi with growth was investigated in the laboratory and the field. Crabs from the first to the third stages had two teeth on the proximal section of the dactylus of the cheliped whilst the fifth or later stage crabs had only one tooth at the same site on the cheliped. Both types of chelipeds were observed in the fourth stage crabs. In the natural population, carapace width of crabs with 2 teeth chelipeds were less than 12.3 mm, and that with one tooth chelipeds larger than 5.4 mm. Furthermore, sexual differences in the width of the abdomen occurred at the fourth crab stage.

Journal

  • Crustacean Research

    Crustacean Research 25 (0), 137-141, 1996

    Carcinological Society of Japan

Citations (1)*help

See more

References(9)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top