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Type: Article
Published: 2022-08-09
Page range: 188-194
Abstract views: 313
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A new congrid eel, Rhynchoconger randalli sp. nov. (Congridae: Anguilliformes), with a pentagonal pattern of vomer dentition from the Bay of Bengal, Indian waters

Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha, India 761002 2Department of Marine Sciences, Berhampur University, Bhanja Bihar, Berhampur, Ganjam, Odisha, India 760007
Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha, India 761002
4Bajkul Milani Mahavidyalaya, Kismat Bajkul, Purba Medinipur, West Bengal, India 721655
Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha, India 761002
Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha, India 761002
Pisces taxonomy marine fish Congrinae new discovery Odisha

Abstract

A new species Rhynchoconger randalli sp. nov. is described herein on the basis of 2 specimens collected from Paradeep fishing harbor, Odisha, India along the Bay of Bengal from a depth of about 36–40 meters. The pentagonal vomerine teeth pattern is unique among all the Rhynchoconger species described to date. The new species is characterized by predorsal vertebrae 7–8 and preanal vertebrae 29–31. The new species closely resembles the recently described Rhynchoconger smithi, but differs in having a larger eye diameter (12.5‒12.9% HL vs. 9.5‒9.7% in R. smithi), smaller interorbital space (13.1‒13.5% HL vs. 15.0‒18.1 in R. smithi), lower dorsal-fin ray count before vent 44‒47 vs. 54‒58 in R. smithi, and unique pentagonal vomerine teeth pattern.

 

References

  1. Alcock, A. (1894) Natural history notes from H.M. Indian marine survey steamer, ‘Investigator,’ Commander C. F. Oldham, R. N., commanding. Series II, No. 9. An account of the deep sea collection made during the season of 1892–93. Journal of the Asiatic Society of Bengal, 62 (2), 169–184, pls. 8‒9.
    Ben-Tuvia, A. (1993) A review of the Indo-West Pacific congrid fishes of genera Rhynchoconger and Bathycongrus with the description of three new species. Israel Journal of Zoology, 39 (4), 349‒370.
    Böhlke, E.B. (1982) Vertebral formulae for type specimens of eels (Pisces: Anguilliformes). Proceedings of the Academy of Natural Sciences of Philadelphia, 134, 31‒49.
    Castle, P.H.J. (1995) Alcock’s congrid eels from the “Investigator” collections in Indian Seas 1888–1894. Copeia, 1995 (3), 706‒718. https://doi.org/10.2307/1446768
    Fricke, R., Eschmeyer, W.N. & Fong, J.D. (2022) Eschmeyer's Catalog of Fishes: Genera/Species by Family/Subfamily. Available from: https://researcharchive.calacademy.org/research/ichthyology/catalog/SpeciesByFamily.asp (accessed 23 July 2022)
    Ginsburg, I. (1951) The eels of the northern Gulf Coast of the United States and some related species. Texas Journal of Science, 3 (3), 431–485.
    Goode, G.B. & Bean, T.H. (1896) Oceanic ichthyology, a treatise on the deep-sea and pelagic fishes of the world, based chiefly upon the collections made by the steamers Blake, Albatross, and Fish Hawk in the northwestern Atlantic, with an atlas containing 417 figures. United States National Museum Special Bulletin, 2, i–xxxv + 1‒26 + 1‒553 (text), i–xxiii + 1‒26, 123 pls. (atlas) https://doi.org/10.5962/bhl.title.48521
    Jordan, D.S. & Bollman, C.H. (1890) Scientific results of explorations by the U. S. Fish Commission steamer Albatross. Descriptions of new species of fishes collected at the Galapagos Islands and along the coast of the United States of Colombia, 1887–’88. Proceedings of the United States National Museum, 12 (770), 149‒183. https://doi.org/10.5479/si.00963801.12-770.149
    Jordan, D.S. & Hubbs, C.L. (1925) Record of fishes obtained by David Starr Jordan in Japan, 1922. Memoirs of the Carnegie Museum, 10 (2), 93–346, pls. 5‒12. https://doi.org/10.5962/p.234844
    Jordan, D.S. & Richardson, R.E. (1909) A catalog of the fishes of the island of Formosa, or Taiwan, based on the collections of Dr. Hans Sauter. Memoirs of the Carnegie Museum, 4 (4), 159–204, pls. 63–74. https://doi.org/10.5962/p.48328
    Kotthaus, A. (1968) Fische des Indischen Ozeans. A. Systematischer Teil. III. Ostariophysi und Apodes. Meteor Forschungsergebnisse, Reihe D, Biologie, 3, 14‒56.
    Manilo, L.G. & Bogorodsky, S.V. (2003) Taxonomic composition, diversity and distribution of coastal fishes of the Arabian Sea. Journal of Ichthyology, 43 (Supplement 1), S75‒S149.
    McCosker, J.E., Böhlke, E.B. & Böhlke, J.E. (1989) Family Ophichthidae. In: Böhlke, E.B. (Ed.), Fishes of the Western North Atlantic, Memoirs of the Sears Foundation for Marine Research. No. 1. Part 9. Sears Foundation for Marine Research, Yale University, New Haven, Connecticut, pp. 254–412.
    Mohapatra, A., Ho, H.-C., Acharya, S., Ray, D. & Mishra, S.S. (2022) A new congrid eel, Rhynchoconger smithi sp. nov. (Anguilliformes: Congridae), from the Bay of Bengal, India. Journal of Fish Biology, 100 (6), 1335–1344. https://doi.org/10.1111/jfb.15031
    Norman, J.R. (1925) A new eel of the genus Congromuraena from Tobago, with notes on C. balearica and C. opisthophthalmus. Annals and Magazine of Natural History, Series 9, 15 (86), 313‒314. https://doi.org/10.1080/00222932508633210
    Smith, D.G. (1989) Family Congridae. In: Böhlke, E.B. (Ed.), Fishes of the Western North Atlantic. Memoirs of the Sears Foundation for Marine Research. No. 1. Part 9. Sears Foundation for Marine Research, Yale University, New Haven, Connecticut, pp. 460‒567.
    Venu, S. (2013) Deep-sea fish distribution along the south-west region of Indian EEZ. In: Venkataraman, K., Sivaperuman, C. & Raghunathan, C. (Eds.), Ecology and Conservation of Tropical Marine Faunal Communities. Springer-Verlag, Berlin and Heidelberg, pp. 261–281. https://doi.org/10.1007/978-3-642-38200-0_17

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