Ichthyological Research

, Volume 53, Issue 1, pp 7–12

Dolichopteryx rostrata, a new species of spookfish (Argentinoidea: Opisthoproctidae) from the eastern North Atlantic Ocean

Full paper

DOI: 10.1007/s10228-005-0306-2

Cite this article as:
Fukui, A. & Kitagawa, Y. Ichthyol Res (2006) 53: 7. doi:10.1007/s10228-005-0306-2


A new species, Dolichopteryx rostrata, is described on the basis of a single specimen (66.2 mm in standard length) collected west of the Hebrides Islands, eastern North Atlantic Ocean. The new species is characterized by an elongate snout and head, small pouchlike eyes, an adipose fin, short dorsal fin base, anal fin base originating under dorsal fin base, a clear longitudinal suborbital brownish band extending forward from behind posterior margin of orbit to snout tip, and 41 (=26 + 15) vertebrae. Total fecundity is low; the ovarian eggs number only 473, despite the ovary having developed ova. Ovarian eggs could be clearly subdivided into an “undeveloped group” (0.1–0.7 mm diameter classes, n = 405) and a “developed group” (0.9–1.3 mm classes, n = 68), based on their frequency distribution.

Key words

Dolichopteryx rostrataNew speciesOpisthoproctidaeEastern North Atlantic

Copyright information

© The Ichthyological Society of Japan 2006

Authors and Affiliations

  1. 1.Department of Fisheries, School of Marine Science and TechnologyTokai UniversityShizuokaJapan
  2. 2.Clinical Development CenterKyowa-Hakko Kogyo Co., LtdTokyoJapan