Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5301 No. 1: 8 Jun. 2023
Type: Article
Published: 2023-06-08
DOI: 10.11646/zootaxa.5301.1.7
Page range: 137-150
Abstract views: 602
PDF downloaded: 23

A new Coelorinchus from the western Indian Ocean with comments on the C. tokiensis group of species (Teleostei: Gadiformes: Macrouridae)

Severtsov Institute of Ecology and Evolution; Russian Academy of Sciences; Leninskii prospect 33; Moscow 119071; Russia
Department of ichthyology; California Academy of Sciences; 55 Music Concourse Drive; San Francisco CA 94118 U.S.A.
Pisces Taxonomy morphology deep-sea benthic fish Indo-Pacific

Abstract

A new species, Coelorinchus zinjianus sp. nov., is described from the western Indian Ocean off Madagascar. In many respects, the new species is similar to C. quadricristatus but differs from that species in details of scale spinulation, mouth coloration (pale vs. dark), size of external light organ, and some other proportions. Together with C. flabellispinis and C. trunovi, these species form the flabellispinis species group, which is restricted to the northern and western Indian Ocean and is similar in most respects to the West-Pacific tokiensis group, but differs in the size and shape of the terminal snout scute (long and pointed, diamond-shaped vs. small and blunt) and apparently attaining a smaller adult size (< 45–55 cm TL vs. > 80–90 cm TL, depending on the species).

 

References

  1. Alcock, A. (1891) Natural history notes from H.M. Indian marine survey steamer ‘Investigator,’ Commander R.F. Hoskyn, R.N., commanding.—No. 18. On the bathybial fishes of the Arabian Sea, obtained during the season 1889–90. Annals and Magazine of Natural History, Series 6, 6 (34), 295–311. https://doi.org/10.1080/00222939008694038 DOI: https://doi.org/10.1080/00222939008694038
  2. Alcock, A. (1894) Natural history notes from H.M. Indian marine survey steamer ‘Investigator,’ Commander C.F. Oldham, R.N., commanding. Series II, No. 11. An account of a recent collection of bathybial fishes from the Bay of Bengal and from the Laccadive Sea. Journal of the Asiatic Society of Bengal, 63 (2), 115–137, pls. VI–VII.
  3. Arai, T. & Iwamoto, T. (1979) A new species of the macrourid fish genus Coelorinchus from off Tasmania, New Zealand, and the Falkland Islands. Japanese Journal of Ichthyology, 26 (3), 238–246. https://doi.org/10.11369/jji1950.26.238
  4. Chiou, M.-L., Shao, K.-T. & Iwamoto T. (2004) A new species, Caelorinchus sheni, and 19 new records of grenadiers (Pisces: Gadiformes: Macrouridae) from Taiwan. Zoological Studies, 43 (1), 35–50. [https://fishdb.sinica.edu.tw/pdf/57.pdf]
  5. Giorna, E.M. (1809) Suite et conclusion du mémoire. Mémoires de l’Académie Impériale des Sciences, Littérature et Beaux-Arts de Turin, pour les Années 1805–1808. Sciences Physiques et Mathématiques, 16, 177–180, pls. I–II.
  6. 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. Studies in Tropical Oceanography, 4 (2), 316–431.
  7. Iwamoto, T. (1986) Family no. 93: Macrouridae. In: Smith, M.M. & Heemstra, P.C. (Eds.), Smiths’ Sea Fishes. Macmillan South Africa, Johannesburg, pp. 330–341. https://doi.org/10.1007/978-3-642-82858-4 DOI: https://doi.org/10.1007/978-3-642-82858-4
  8. Iwamoto, T. & Anderson, M.E. (1994) Review of the grenadiers (Teleostei: Gadiformes) of southern Africa, with descriptions of four new species. Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology, 61, 1–28.
  9. Iwamoto, T. & Sazonov, Y.I. (1988) A review of the southeastern Pacific Coryphaenoides (sensu lato) (Pisces, Gadiformes, Macrouridae). Proceedings of the California Academy of Sciences, 45 (3), 35–82.
  10. McMillan, P. & Iwamoto, T. (2009) Two new species of Coelorinchus (Teleostei, Gadiformes, Macrouridae) from the Tasman Sea. Proceedings of the California Academy of Sciences, 60 (4), 39–51.
  11. McMillan, P.J. & Paulin, C.D. (1993) Descriptions of nine new species of rattails of the genus Caelorinchus (Pisces, Macrouridae) from New Zealand. Copeia, 1993 (3), 819–840. https://doi.org/10.2307/1447247 DOI: https://doi.org/10.2307/1447247
  12. Nakayama, N., Matsunuma, M. & Endo, H. (2016) Redescription of Coelorinchus tokiensis (Steindachner and Döderlein 1887) (Actinopterygii: Gadiformes: Macrouridae), with comments on its synonymy. Ichthyological Research, 63 (2), 247–259. https://doi.org/10.1007/s10228-015-0493-4 DOI: https://doi.org/10.1007/s10228-015-0493-4
  13. Okamura, O. (1970) Studies on the macrouroid fishes of Japan. Morphology, ecology and phylogeny. Reports of the Usa Marine Biological Station, 17 (1–2), 1–179.
  14. Okamura, O. (1982) Coelorhynchus [in part]. In: Okamura, O., Amaoka, K. & Mitani, F. (Eds.), Fishes of the Kyushu-Palau Ridge and Tosa Bay. Japan Fisheries Resource Conservation Association, Tokyo, pp. 172–179.
  15. Prokofiev, A.M. & Iwamoto, T. (2020) Revision of the grenadier genus Coelorinchus (Teleostei: Macrouridae) from the Mascarene Ridge, western Indian Ocean, with description of two new species. Proceedings of the California Academy of Sciences, 66 (9), 231–273.
  16. Prokofiev, A.M. & Iwamoto, T. (2022) A new species of the grenadier genus Coelorinchus (Gadiformes: Macrouridae) from the western Indian Ocean. Zootaxa, 5194 (2), 193–212. https://doi.org/10.11646/zootaxa.5194.2.3 DOI: https://doi.org/10.11646/zootaxa.5194.2.3
  17. Sabaj, M.H. (2022) Codes for natural history collections in ichthyology and herpetology (online supplement). Version 9.0. 14 February 2022. American Society of Ichthyologists and Herpetologists, Washington, D.C. Available from: https://www.asih.org/resources/standard-symbolic-codes (accessed 10 August 2022)
  18. Steindachner, F. & Döderlein, L. (1887) Beiträge zur Kenntniss der Fische Japan's (IV). Denkschriften der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe, 53 (1), 257–296, pls. 1–4.