Ichthyological Research

, Volume 62, Issue 4, pp 504–511 | Cite as

A new grenadier of the genus Hymenocephalus from Tosa Bay, southern Japan (Actinopterygii: Gadiformes: Macrouridae)

  • Naohide Nakayama
  • Hiromitsu Endo
  • Werner Schwarzhans
Full Paper

Abstract

Hymenocephalus yamasakiorum, a new species of grenadier fishes, is described from a single specimen collected from Tosa Bay off Aki, Kochi, Japan, at a depth of 320–400 m. The species is distinguished from its 26 known congeners in having the following combination of features: pelvic-fin rays nine; pectoral-fin rays i16–i17; first dorsal-fin rays II, 10; chin barbel 55 % of head length (HL), its tip extending beyond the hind margin of orbit when laid back; snout moderately high, not depressed, length 28 % HL; orbit diameter 33 % HL; interorbital width 24 % HL; gill rakers on first arch (outer/inner) 14/20, on second arch 20/19; pyloric caeca 15; dorsal half of posterior part of tail prominently blackish.

Keywords

New species Kochi Northwestern Pacific Otoliths 

References

  1. Akihito, Sakamoto K, Iwata A, Ikeda Y (1993) Cephalic sensory organs of the gobioid fishes. In: Nakabo T (ed) Fishes of Japan with pictorial keys to the species, first edn. Tokai University Press, Tokyo, pp 1088–1116Google Scholar
  2. Endo H, Nashida K (2010) Glossanodon kotakamaru, a new argentine fish from southern Japan (Protacanthopterygii: Argentinidae). Bull Natl Mus Nat Sci, Ser A Suppl 4:119–127Google Scholar
  3. Fricke R, Eschmeyer WN (2015) A guide to fish collections in the Catalog of Fishes. http://researcharchive.calacademy.org/research/ichthyology/catalog/collections.asp. Accessed 2 February 2015
  4. Giglioli EH (1884) Esplorazione talassografica del Mediterraneo. In: Giglioli EH, Issel A (ed) Plagos, Saggio sulla vita e sui prodrotti del mare. Instituto de’ Sordo-muti, Genova, pp 198–270Google Scholar
  5. Gilbert CH, Hubbs CL (1920) The macrouroid fishes of the Philippine Islands and the East Indies. Bull US Natl Mus, No 100 1:369–588Google Scholar
  6. Günther A (1887) Report on the deep-sea fishes collected by H.M.S. Challenger during the years 1873–76. Rep Sci Res Voy HMS Challenger 22:i–lxv + 1–268, pls 1-66Google Scholar
  7. Horikawa H (2009) Calendars of the distribution of demersal fishes in Tosa Bay. Fisheries Biol and Oceanogr Kuroshio (Suppl 1):i–xxi, 1–752Google Scholar
  8. Honda H, Sakaji H, Nashida K (2001) Seasonal changes in biomass of demersal fish and benthos inhabiting the continental shelf and the upper continental slope area of Tosa Bay, southern Japan. Natn Sci Mus Monogr 20:345–362Google Scholar
  9. Iwamoto T (1970) The R/V Pillsbury Deep-Sea Biological Expedition to the Gulf of Guinea, 1964–65. 19. Macrourid fishes of the Gulf of Guinea. Stud Trop Oceanogr 4:316–431 Google Scholar
  10. Iwamoto T, Sazonov YI (1988) A review of the southeastern Pacific Coryphaenoides (sensu lato) (Pisces, Gadiformes, Macrouridae). Proc Calif Acad Sci 45:35–82Google Scholar
  11. Iwamoto T, Shao KT, Ho HC (2011) Elevation of Spicomacrurus (Gadiformes: Macrouridae) to generic status, with descriptions of two new species from the southwestern Pacific. Bull Mar Sci 87:513–530Google Scholar
  12. Jordan DS, Starks EC (1904) List of fishes dredged by the steamer Albatross off the coast of Japan in the summer of 1900, with descriptions of new species and a review of the Japanese Macrouridae. Bull US Fish Comm 22:577–630, pls 1–8Google Scholar
  13. Kamohara T (1938) On the offshore bottom-fishes of Prov. Tosa, Shikoku, Japan. Maruzen Co., Ltd, TokyoGoogle Scholar
  14. Kamohara T (1952) Revised descriptions of the offshore bottom-fishes of Prov. Tosa, Shikoku, Japan. Res Rep Kochi Univ Nat Sci 3:1–122Google Scholar
  15. Matsubara K (1943) Ichthyological annotations from the depth of the Sea of Japan, I–VII. J Sigenkagaku Kenkyûsyo 1:37–82Google Scholar
  16. Matsubara K, Yamaguti M (1943) On a new serranid fish Malakichthys elegans from Suruga Bay, with special reference to a comparison of hitherto known species. J Sigenkagaku Kenkyûsyo 1:83–96Google Scholar
  17. Matsuura K (1997) Fish collection building in Japan, with comments on major Japanese ichthyologists. In: Pietsch TW, Anderson Jr WD (eds) Collection building in ichthyology and herpetology. American Society of Ichthyologists and Herpetologists, Kansas, pp 171–182Google Scholar
  18. McMillan P, Iwamoto T (2014) Descriptions of four species of grenadier fishes of the genera Hymenocephalus and Hymenogadus (Teleostei, Gadiformes, Macrouridae) from the New Zealand region and Tasman Sea, including two new species of Hymenocephalus. Zootaxa 3856:117–134Google Scholar
  19. Nakabo T, Kai Y (2013) Macrouridae. In: Nakabo T (ed) Fishes of Japan with pictorial key to the species, third edn. Tokai University Press, Hadano, pp 493–512, 1872–1876Google Scholar
  20. Nakayama N, Endo H (2012) A new grenadier of the genus Nezumia (Pisces: Gadiformes: Macrouridae) from southern Japan. Zootaxa 3410:61–68Google Scholar
  21. Okamura O (1970) Fauna Japonica. Macrourina (Pisces). Academic Press, TokyoGoogle Scholar
  22. Okamura O (1982) Macrouridae. In Okamura O (ed) Fishes of the Kyushu-Palau Ridge and Tosa Bay. Japan Fisheries Resource Conservation Association, Tokyo, pp 140–181, 345–354Google Scholar
  23. Radcliffe L (1912) Descriptions of a new family, two new genera, and twenty-nine new species of anacanthine fishes from the Philippine Islands and contiguous waters. Proc US Natl Mus 41:105–140, pls 22–31Google Scholar
  24. Saruwatari T, Lopez JA, Pietsch TW (1997) Cyanine blue: a versatile and harmless stain for specimen observations. Copeia 1997:840–841Google Scholar
  25. Schwarzhans W (2014) Head and otolith morphology of the genera Hymenocephalus, Hymenogadus and Spicomacrurus (Macrouridae), with the description of three new species. Zootaxa. 3888:1–73Google Scholar
  26. Shinohara G, Endo H, Matsuura K, Machida Y, Honda H (2001) Annotated checklist of the deepwater fishes from Tosa Bay, Japan. Natn Sci Mus Monogr 20:283–343Google Scholar
  27. Yamanoue Y, Yoseda K (2001) A new species of the genus Malakichthys (Perciformes: Acropomatidae) from Japan. Ichthyol Res 48:257–261Google Scholar

Copyright information

© The Ichthyological Society of Japan 2015

Authors and Affiliations

  • Naohide Nakayama
    • 1
  • Hiromitsu Endo
    • 1
  • Werner Schwarzhans
    • 2
    • 3
  1. 1.Laboratory of Marine Biology, Faculty of ScienceKochi UniversityKochiJapan
  2. 2.HamburgGermany
  3. 3.Natural History Museum of Denmark, Zoological MuseumCopenhagenDenmark

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