A new species of deep-sea synaphobranchid eel, Haptenchelys parviocularis (Anguilliformes: Synaphobranchidae), from Japan (original) (raw)

Abstract

A new synaphobranchid eel Haptenchelys parviocularis is described on the basis of 15 specimens (467–840 mm in total length) collected off the Pacific coast of southern Japan, in depths of 4,093–4,866 m. The new species is distinguishable from its single congener, Haptenchelys texis Robins and Martin in Robins and Robins 1976, in having the following combination of characters: total vertebrae 127–137, caudal vertebrae 90–98; snout short, length 42.5–53.1 % upper-jaw length; eye much smaller than gill-slit aperture, diameter 37.5–59.4 % gill-slit length and 11.8–16.9 % upper-jaw length; eye positioned closer to middle of mouth gape (postorbital length-to gape 23.5–32.5 % head length and 40.5–50.9 % upper-jaw length); gill-slit aperture wide (15.8–22.1 % head length and 24.8–35.7 % upper-jaw length), orientation oblique to body axis.

Access this article

Log in via an institution

Subscribe and save

• Starting from 10 chapters or articles per month
• Access and download chapters and articles from more than 300k books and 2,500 journals
• Cancel anytime View plans

Buy Now

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

Instant access to the full article PDF.

Fig. 1

The alternative text for this image may have been generated using AI.

Fig. 2

The alternative text for this image may have been generated using AI.

Fig. 3

The alternative text for this image may have been generated using AI.

Fig. 4

The alternative text for this image may have been generated using AI.

Fig. 5

The alternative text for this image may have been generated using AI.

Similar content being viewed by others

References

• Amante C, Eakins BW (2009) ETOPO1 1 arc-minute global relief model: procedures, data sources and analysis. NOAA Technical Memorandum NESDIS NGDC-24, March 2009. http://www.ngdc.noaa.gov/mgg/global/. Accessed 16 December 2013
• Anderson ME, Crabtree RE, Carter HJ, Sulak KJ, Richardson MD (1985) Distribution of demersal fishes of the Caribbean Sea found below 2,000 meters. Bull Mar Sci 37:794–807
• Barnard KH (1923) Diagnoses of new species of marine fishes of South African waters. Ann S Afr Mus 13: 439–445
• Böhlke EB (1982) Vertebral formulae of type specimens of eels. Proc Acad Nat Sci Philad 134:31–49
• Böhlke EB (1989) Methods and terminology. In: Böhlke EB (ed) Fishes of the western North Atlantic, part nine, volume one: orders Anguilliformes and Saccopharyngiformes. Sears Foundation for Marine Research, Yale University, New Haven, pp 1–7
• Gill TN (1883) Diagnosis of new genera and species of deep-sea fish-like vertebrates. Proc U S Nat Mus 6: 253–260
• Günther A (1877) Preliminary notes on new fishes collected in Japan during the expedition of H.M.S. ‘Challenger.’. Ann Mag Nat Hist, Ser 4 20: 433–446
• JAMSTEC (2013) JAMSTEC e-library of deep-sea images (J-EDI). http://www.godac.jamstec.go.jp/jedi/e/index.html. Accessed 20 December 2013
• Johnson JY (1862) Descriptions of some new genera and species of fishes obtained at Madeira. Proc Zool Soc Lond 1862: 167–180
• Karmovskaya ES (2003) New records of synaphobranchid eels (Synaphobranchidae, Anguilliformes) collected off New Caledonia and adjacent regions, with description of a new species of Atractodenchelys. J Ichthyol 43:491–500
• Karmovskaya ES, Merrett NR (1998) Taxonomy of the deep-sea eel genus, Histiobranchus (Synaphobranchidae, Anguilliformes), with notes on the ecology of H. bathybius in the eastern north Atlantic. J Fish Biol 53:1015–1037
• Melo MR (2007) A new synaphobranchid eel (Anguilliformes: Synaphobranchidae) from Brazil, with comments on the species from the western South Atlantic. Copeia 2007:315–323
• Merrett NR, Saldanha L (1985) Aspects of the morphology and ecology of some unusual deep-sea eels (Synaphobranchidae, Derichthyidae and Nettastomatidae) from the eastern North Atlantic. J Fish Biol 27:719–747
• Okamura O, Machida Y (1987) Additional records of fishes from Kochi Prefecture, Japan (II). Mem Fac Sci Kochi Univ Ser D (Biol) 8:101–112
• Robins CH, Robins CR (1976) New genera and species of dysommine and synaphobranchine eels (Synaphobranchidae) with an analysis of the Dysomminae. Proc Acad Nat Sci Philad 127:249–280
• Robins CH, Robins CR (1989) Family Synaphobranchidae. In: Böhlke EB (ed) Fishes of the western North Atlantic, part nine, volume one: orders Anguilliformes and Saccopharyngiformes. Sears Foundation for Marine Research, Yale University, New Haven, pp 207–253
• Sabaj Pérez MH (ed) (2013) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an online reference. Version 4.0 (28 June 2013). American Society of Ichthyologists and Herpetologists, Washington, DC. http://www.asih.org/resources/standard-symbolic-codes-institutional-resource-collections-herpetology-ichthyology. Accessed 16 Dec 2013
• Saldanha L, Merrett NR (1982) A new species of the deep-sea eel genus Ilyophis Gilbert (Synaphobranchidae) from the eastern North Atlantic, with comments on its ecology and intrafamilial relationships. J Fish Biol 21:623–636
• Smith DG (2002) Synaphobranchidae. In: Carpenter KE (ed.) The living marine resources of the Western Central Atlantic. Vol 2: Bony fishes part 1 (Acipenseridae to Grammatidae). FAO species identification guide for fishery purposes. FAO, Rome. pp 719–723
• Sulak JK, Shcherbachev YN (1997) Zoogeography and systematics of six deep-living genera of synaphobranchid eels, with a key to taxa and description of two new species of Ilyophis. Bull Mar Sci 60:1158–1194
• Tashiro F, Imamura H, Yabe M (2010) Rediscovery of Ilyophis nigeli (Anguilliformes; Synaphobranchidae) from northern Japan. Japan J Ichthyol 57:167–172

Download references

Acknowledgments

We deeply appreciate assistance provided by the following persons: Ken Fujimoto (National Research Institute of Fisheries Science, Yokohama), Masanori Okanishi (Kyoto University), and the crew of the R/V Soyo-maru for the procurement of the specimens; J. Maclaine (BMNH), J.T. Williams (NMNH), K.W. Conway (TAMU), M. Sabaj Pérez (ANSP), R. Causse and P. Pruvost (MNHN) and R.H. Robins (FMNH) for the loan of specimens; Hiromitsu Endo (BSKU), K. Luckenbill (ANSP) and Tsunemi Kubodera (NSMT) for supplying radiographs and/or photographs of the specimens; Eri Katayama (NSMT) for assistance with SEM; Keiichi Matsuura and Takashi P. Satoh (NSMT) for providing valuable information; Shinpei Ohashi (HUMZ) for sending literature; Yasunori Hanafusa (JAMSTEC) for providing information of J-EDI archives; Hisashi Imamura (HUMZ) and J. McCosker (CAS) for critically reading an early draft of the manuscript and providing important comments; Graham S. Hardy (Wangarei, New Zealand) for English corrections and helpful suggestions; and three anonymous referees for providing valuable comments. In the present study, the authors used the data from the JAMSTEC Data Research for Whole Cruise Information. This study was partly supported by MEXT KAKENHI Grant number 24120001.

Author information

Author notes

1. Fumihito Tashiro
   Present address: Maizuru Fisheries Research Station, Field Science Education and Research Center, Kyoto University, Nagahama, Maizuru, Kyoto, 625-0086, Japan

Authors and Affiliations

1. Department of Zoology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki, 305-0005, Japan
   Fumihito Tashiro & Gento Shinohara

Authors

1. Fumihito Tashiro
2. Gento Shinohara

Corresponding author

Correspondence toFumihito Tashiro.

Additional information

This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as CB02F66A-8173-4CB1-9590-62D19FCA7D7F.

This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number.

About this article

Cite this article

Tashiro, F., Shinohara, G. A new species of deep-sea synaphobranchid eel, Haptenchelys parviocularis (Anguilliformes: Synaphobranchidae), from Japan.Ichthyol Res 62, 115–121 (2015). https://doi.org/10.1007/s10228-014-0410-2

Download citation

• Received: 21 January 2014
• Revised: 15 April 2014
• Accepted: 03 May 2014
• Published: 31 May 2014
• Issue date: January 2015
• DOI: https://doi.org/10.1007/s10228-014-0410-2

Keywords