Skip to main content
SpringerLink
Log in

Discovery of Photonectes uncinatus on the Walvis Ridge (Southeast Atlantic) and Species Redescription (Melanostomiidae)

  • Published:
Journal of Ichthyology Aims and scope Submit manuscript

Abstract—

The second specimen of the rare species Photonectes uncinatus, previously known only by the holotype from the Rio Grande Rise (Southwest Atlantic), was discovered in the samples of Melanostomiidae from the Walvis Ridge made by I.A. Trunov in 1976. The redescription of the species taking into account new data is provided, and the individual variability of a number of diagnostically significant morphological characters is clarified. It has been established that the features of the arrangement of teeth on the palatinum are of diagnostic value for definition of the groups of species within the genus Photonectes. Based on published data, P. uncinatus is also indicated for waters of New Zealand (Bounty Plateau). The type of range of this species is discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.

Similar content being viewed by others

Notes

  1. In the original description (Prokofiev, 2015), the number of teeth on vomer and palatinum was indicated as 3 + 1 and 2/3, because the teeth hidden in the skin were not determined. The first and third palatine teeth of the holotype are noticeably longer than those of the specimen from the Walvis Ridge, and far apart, the second tooth is adjacent to the third.

  2. Measurement (5.8% SL), performed with the holotype immediately after its transfer from formalin to alcohol (Prokofiev, 2015), is included within the variability range.

REFERENCES

  1. Aizawa, M., Photonectes sp. in Fishes Collected by the R/V Shinkai Maru around New Zealand, Amaoka, K., et al., Eds., Tokyo: Jpn. Mar. Fish. Resour. Res. Center, 1990, p. 122.

    Google Scholar 

  2. Borodulina, O.D., External structure of the postorbital organ in some representatives of the family Melanostomiidae (Stomiiformes), J. Ichthyol., 2009, vol. 49, no. 8, p. 698.

    Article  Google Scholar 

  3. Ekman, S., Zoogeography of the Sea, Dublin: Sidgwick and Jackson, 1953.

    Google Scholar 

  4. Gibbs, R.H., Photonectes munificus, A New Species of Melanostomiatid Fish from the South Pacific Subtropical Convergence, with Remarks on the Convergence Fauna, Contributions in Science no. 149, Los Angeles: Los Angeles County Mus. Nat. Hist., 1968, pp. 1–6.

  5. Gibbs, R.H. and McKinney, J.F., High-count species of the stomiid fish genus Astronesthes from the Southern Subtropical Convergence region: two new species and redescription of Cryptostomias (=Astronesthes) psychrolutes,Smithson. Contrib. Zool., 1988, no. 460, pp. 1–25.

  6. Koeda, K. and Ho, H.-C., Photonectes banshee, a new species of the subgenus Photonectes (Stomiiformes: Stomiidae: Melanostomiinae) from Taiwan, Zootaxa, 2019, vol. 4586, no. 1, pp. 180–186.

    Article  Google Scholar 

  7. Morrow, J.E. and Gibbs, R.H., Melanostomiatidae, in Fishes of the Western North Atlantic, New Haven: Sears Found., 1964, vol. 1, part 4, pp. 351–522.

    Google Scholar 

  8. Prokofiev, A.M., Data for the revision of subgenus Trachinostomias (Melanostomiidae: Photonectes). Morphological variability of P. margarita with description of two new species, J. Ichthyol., 2015, vol. 55, no. 2, pp. 147–154.

    Article  Google Scholar 

  9. Prokofiev, A.M. and Klepadlo, C., Two new species of Photonectes with blue luminous tissue on body, and a re-examination of P. mirabilis (Teleostei: Stomiidae), Zootaxa, 2019, vol. 4590, no. 2, pp. 270–282.

    Article  Google Scholar 

  10. Prokofiev, A.M., Materials for revision of the genus Photonectes (Melanostomiidae), J. Ichthyol., 2019, vol. 59, no. 4, pp. 449–476.

    Article  Google Scholar 

Download references

Funding

The article was written with the support of the Russian Science Foundation, project no. 19-14-00026. The study of the ichthyofauna of the Atlantic Ocean is a part of the theme of state assignment no. 0149-2018-0009, the study of Melanostomiidae is a part of the theme of state assignment no. 0109–2018–0076.

Author information

Authors and Affiliations

  1. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences (IEE RAS), Moscow, Russia

    A. M. Prokofiev

  2. Shirshov Institute of Oceanology, Russian Academy of Sciences (IO RAS), Moscow, Russia

    A. M. Prokofiev

Authors
  1. A. M. Prokofiev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. M. Prokofiev.

Ethics declarations

Conflict of interests. The authors declare that they have no conflicts of interest.

Statement on the welfare of animals. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

Additional information

Translated by S. Avodkova

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Prokofiev, A.M. Discovery of Photonectes uncinatus on the Walvis Ridge (Southeast Atlantic) and Species Redescription (Melanostomiidae). J. Ichthyol. 60, 355–363 (2020). https://doi.org/10.1134/S0032945220030133

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0032945220030133

Keywords:

Search

Navigation