A new species of Pista (Annelida: Polychaeta: Terebellidae) from shallow waters of Shizugawa Bay, Sanriku Coast, Japan

Authors

  • Eijiroh Nishi Manazuru Marine Laboratory for Science Education, Yokohama National University
  • Katsuhiko Tanaka Shizugawa Nature Centre

DOI:

https://doi.org/10.3989/scimar.2006.70s3139

Keywords:

Polychaeta, Shizugawa, Tohoku, Pista, new species, Terebellidae, taxonomy

Abstract


A new species of the genus Pista (Annelida: Polychaeta: Terebellidae) was found on a boulder bottom in shallow waters of of Shizugawa Bay, Sanriku coast, northern Honshu, Japan. Individuals of this species measure 5 to 10 cm long and 3 to 5 mm wide. There are two pairs of branchiae on segments 2 and 3, each with an annulated long stalk and many dichotomous branches. The peristomium and segment 3 have elongate, semi-circular lateral lobes, segments 2 and 4 each have small lobes, segments 5 and 6 have very small lobes inserted between the neuropodium and ventral pad. Individuals of the new species have 17 pairs of notopodia from segment 4 and conical nephridial papillae on segments 6 and 7. The new Japanese species differs from all known species in the structure of the branchiae and the lateral lobes of anterior chaetigers.

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Published

2006-12-30

How to Cite

1.
Nishi E, Tanaka K. A new species of Pista (Annelida: Polychaeta: Terebellidae) from shallow waters of Shizugawa Bay, Sanriku Coast, Japan. scimar [Internet]. 2006Dec.30 [cited 2021Sep.17];70(S3):139-44. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/117

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