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Ichthyological Research

, Volume 55, Issue 3, pp 267–273 | Cite as

Dolichopteryx pseudolongipes, a new species of spookfish (Argentinoidei: Opisthoproctidae) from the eastern Pacific Ocean

  • Atsushi Fukui
  • Yasuyuki Kitagawa
  • Nikolay V. Parin
Full Paper

Abstract

A new species of opisthoproctid, Dolichopteryx pseudolongipes, is described on the basis of three specimens (48.7–79.9 mm in standard length: SL) collected from the eastern Pacific Ocean. This species is characterized by small tubular eyes (diameter 2.7–3.9% SL), presence of an adipose fin, anal fin base originating under the dorsal fin base, relatively short predorsal (73.3–73.8% SL), prepelvic (64.3–67.9% SL), preanal (77.4–80.1% SL), and preanus (71.5–75.7% SL) lengths; 31–33 (=9–10 + 22–24) gill rakers and 43–45 vertebrae. Although D. pseudolongipes had previously been confused with Dolichopteryx longipes, many differences between the species are apparent [e.g., adipose fin absent, anal fin base origin just behind dorsal fin base, greater prepelvic length (70.3–72.7% SL), 25 gill rakers, and 46–47 vertebrae in D. longipes].

Keywords

Dolichopteryx pseudolongipes New species Opisthoproctidae Eastern Pacific Ocean 

Notes

Acknowledgments

Authors thank P.A. Hastings and C. Klepadlo (SIO), B. Séret (MNHN), J. Maclaine (BMNH), K. Tsukamoto (ORIT), M. Okiyama (Tokyo, Japan), and P. Bartsch (ZMB) for specimen loans or radiographs, and the captains and crews of R/V Hokuho-maru and scientists on board during Cruises KH-81-4, KH-86-4, KH-02-2, and KH-04-2 for their assistance in sampling. Grateful thanks are also given to G.S. Hardy (Ngunguru, New Zealand) and M. Okiyama for their critical comments on the manuscript and great help with English.

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Copyright information

© The Ichthyological Society of Japan 2008

Authors and Affiliations

  • Atsushi Fukui
    • 1
  • Yasuyuki Kitagawa
    • 2
  • Nikolay V. Parin
    • 3
  1. 1.Department of Fisheries, School of Marine Science and TechnologyTokai UniversityShizuokaJapan
  2. 2.Clinical Development CenterKyowa-Hakko Kogyo Co. LtdTokyoJapan
  3. 3.Shirshov Institute of OceanologyRussian Academy of SciencesMoscowRussia

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