LARVAL DEVELOPMENT OF A SPIONID POLYCHAETE PARAPRIONOSPIO PINNATA (EHLERS)

IR (HANDLE) Open Access

Search this article

Description

Data concerning the development of the spionid polychaete Paraprionospio pinnata are derived from specimens which were obtained from the plankton in Kumihama Bay and reared in the laboratory. Descriptions and figures are given on the pelagic larva from 2- to 38-segment stage and the metamorphosed juvenile. The red pigments on the lateral lips and the absence of larval setae in segment 2 are diagnostic features of the larval stage in this species. The characteristics similar to those for the adult (e.g. branchiae, palpi, parapodial lamellae and hooded hooks) appear successively as the larva grows. Metamorphosis occurred at 33- to 37-segment stage in the laboratory culture, of which sizes of the specimens were rather smaller than those of the specimens obtained from the bottom of the sea. Among the spionid larvae listed from the literatures, Paraprwnospio pinnata is largest in size and in the number of segments at metamorphosis.

Journal

Details 詳細情報について

  • CRID
    1050564285725882112
  • NII Article ID
    120005298380
  • NII Book ID
    AA00713575
  • ISSN
    00372870
    21892695
  • HANDLE
    2433/176017
  • Text Lang
    en
  • Article Type
    departmental bulletin paper
  • Data Source
    • IRDB
    • CiNii Articles

Report a problem

Back to top