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New records of congrid eels of the genus Bathycongrus (Congridae) in the west-central tropical part of the Pacific Ocean, with a description of three new species

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Abstract

Results of the study of a collection of bathyal benthopelagic congrid eels of the genus Bathycongrus collected during the MUSORSTOM and other expeditions in the west-central tropical part of the Pacific Ocean are presented. The synonymy and brief descriptions of three known species (B. guttulatus, B. odontostomus, and B. wallacei) and more detailed descriptions of three new species (B. longicavis, B. parapolyporus, and B. unimaculatus) are provided. The first species, B. longicavis, is described from one specimen caught in the New Hebrides Trench at a depth of approximately 600 m; it differs from all related species of the genus in its maximum number of trunk vertebrae (68), relatively short head (35% aA), and long mouth cleft (45% c). B. parapolyporus, whose type specimens were caught off the Fiji Islands and in the South China Sea at depths of 310–500 m, differs from all the known Indo-Pacific species of the genus in its greater number of head pores in the supraorbital (5–6), infraorbital (7–8), and preoperculo-mandibular (11) canals, and from the West-Atlantic B. polyporus, which is similar to it in the number of head pores, in its smaller number of vertebrae (150–160) and preanal pores (31–33). The third species, B. unimaculatus, described from one specimen caught in the Loyalty Basin at a depth of 470–480 m, differs from the other two West-Pacific species of this group (B. bleekeri and B. trimaculatus) in its greater number of vertebrae (137) and the presence of a dark wide band along the posterior part of the anal fin. The geographic distribution is considered, and the habitat depths of the genus species under consideration are listed.

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References

  1. H. Asano, “Studies on the Congrid Eels of Japan,” Bull. Misaki Mar. Biol. Inst. Kyoto Univ., No. 1, 1–143 (1962).

  2. H. Asano, “Family Congridae,” in The Fishes of the Japanese Archipelago, Ed. by H. Masuda, K. Amaoka, et al. (Tokai Univ. Press, Tokyo, 1984), pp. 27–29.

    Google Scholar 

  3. A. Ben-Tuvia, “A Review of the Indo-West Pacific Congrid Eels of Genera Rhynchoconger and Bathycongrus with the Description of Three New Species,” Israel J. Zool. 39, 349–370 (1993).

    Google Scholar 

  4. P. H. J. Castle, “Congrid Leptocephali in Australasian Waters with Descriptions of Conger wilsoni (Bl. and Schn.) and C. verreauxi Kaup,” Zool. Publ. Victoria Univ. Wellington, No. 37, 1–45 (1964).

  5. P. H. J. Castle, “The Congrid Eels of the Western Indian Ocean and the Red Sea,” Bull. J. L. B. Smith. Inst. Ichthyol., No. 33, 685–726 (1968).

  6. P. H. J. Castle, “The Eel Genera Congrina and Colo-conger Off Southern Mozambique with Description of Their Larval Forms,” Spec. Publ. J.L.B. Smith. Inst. Ichthyol., No. 6, 1–10 (1969).

  7. P. H. J. Castle, “Family Congridae,” in Smiths’ Sea Fishes, Ed. by M.M. Smith and P.C. Heemstra (Macmillan, Johannesburg, 1986), pp. 161–165.

    Google Scholar 

  8. P. H. J. Castle, “Alcock’s Congrid Eels from the “Investigator” Collection in Indian Seas 1888–1894,” Copeia, No. 3, 706–718 (1995).

  9. P. H. J. Castle and D. G. Smith, “A Reassessment of the Eels of the Genus Bathycongrus in the Indo-West-Pacific,” J. Fish. Biol., No. 54, 973–995 (1999).

    Google Scholar 

  10. J. T. F. Chen and H. T. C. Weng, “A Review of the Apodal Fishes of Taiwan,” Biol. Bull. Tunghai Univ., Ichthyol. Ser. 32(6), 1–86 (1967).

    Google Scholar 

  11. H. W. Fowler, “Descriptions of New Fishes Obtained 1907 to 1910, Chiefly in the Philippine Islands and Adjacent Seas,” Proc. Acad. Natur. Sci. Phila 85, 233–367 (1934).

    Google Scholar 

  12. R. Fricke, “Fishes of the Mascarene Islands (Réunion, Mauritius, Rodriguez). An Annotated Checklist with Descriptions of New Species,” Koeltz Sci. Books. Th. Zool. 31, 37–72 (1999).

    Google Scholar 

  13. A. Günther, “Report on the Deep-Sea Fishes Collected by H.M.S. “Challenger” during the Years 1873–76. Report on the Scientific Results of the Voyage of H.M.S. Challenger 1873–76,” Zoology, No. 22, 1–335 (1887).

  14. E. S. Karmovskaya, “Benthopelagic Bathyal [Conger]5 Eels of Families Congridae and Nettastomathidae from the Western Tropical Pacific, with Descriptions of Ten New Species,” J. Ichthyol. 44(Suppl. 1), 1–32 (2004).

    Google Scholar 

  15. E. S. Karmovskaya and D. G. Smith, “Bathycongrus trimaculatus, a New Congrid eel (Teleostei: Anguilliformes) from the Southwestern Pacific, with a Redescription of Bathycongrus bleekeri Fowler,” Zootaxa 1943, 23–36 (2009).

  16. C. Karrer, “Anguilliformes du Canal de Mozambique (Pisces, Teleostei),” Faune Trop. ORSTOM, Paris, No. 23, 1–116 (1982).

  17. Y. Machida, H. Asano, and S. Ohta, “Redescription of the Congrid Eel, Rhechias retrotincta (Jordan and Snyder),” Jap. J. Ichthyol. 4(3), 312–316 (1994).

    Google Scholar 

  18. J. D. McEachran and J. D. Fechhelm, “Myxiniformes to Gasterosteiformes,” in Fishes of the Gulf of Mexico. Austin: Texas Press, Austin, 1998), Vol. 1, pp. 242–250.

    Google Scholar 

  19. J. D. Ogilby, “New Genera and Species of Fishes,” Proc. Linn. Soc. N.S.W. 23(3), 280–299 (1898).

    Google Scholar 

  20. J.-C. Quéro and L. Saldanha, “Poissons anguilliformes de l’Ille de la Réunion (Océan Indien): description d’une nouvelle espèce,” Cybium 19(1), 61–88 (1995).

    Google Scholar 

  21. E. D. Reid, “Two New Congrid Eels and a New Flatfish,” Smithsonian Misc. Coll. 91(15), 1–11 (1934).

    Google Scholar 

  22. D. G. Smith, “Family Congridae,” in Fishes of the Western North Atlantic, Part 9, Ed. by E.B. Böhlke, Mem. Sears. Found. Mar. Res., No. 1, 460–567 (1989).

  23. D. G. Smith, “Catalog of Type Specimens of Recent Fishes in the National Museum of Natural History, Smithsonian Institution, 6: Anguilliformes, Saccopharyngiformes and Notacanthiformes (Teleostei: Elopomorpha),” Smithson. Contrib. Zool., No. 566, 1–50 (1994).

  24. D. G. Smith, “Congridae,” in FAO Species Identification Guide for Fishery Purposes. The Living Marine Resources of the Western Central Pacific, Ed. by K. E. Carpenter and V.H. Niem (1999), Vol. 3. pp. 1680–1687.

  25. D. G. Smith and E. S. Karmovskaya, “A New Genus and Two New Species of Congrid Eels (Teleostei: Anguilliformes: Congridae) from the Indo-West Pacific, with a Redescription and Osteology of Chiloconger dentatus,” Zootaxa 343, 1–19 (2003).

    Google Scholar 

  26. M. Weber and L. F. de Beaufort, The Fishes of the Indo-Australian Archipelago (Leiden, 1916), Vol. 3.

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  1. Shirshov Institute of Oceanology, Russian Academy of Sciences (IORAS), Nakhimovskii pr. 36, Moscow, 117218, Russia

    E. S. Karmovskaya

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Correspondence to E. S. Karmovskaya.

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Original Russian Text © E.S. Karmovskaya, 2009, published in Voprosy Ikhtiologii, 2009, Vol. 49, No. 2, pp. 168–182.

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Karmovskaya, E.S. New records of congrid eels of the genus Bathycongrus (Congridae) in the west-central tropical part of the Pacific Ocean, with a description of three new species. J. Ichthyol. 49, 139–153 (2009). https://doi.org/10.1134/S0032945209020015

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