Biology:Saccopharynx
Saccopharynx is a genus of deep-sea eels with large mouths, distensible stomachs and long, scaleless bodies. Commonly, these fish are called gulpers or gulper eels. It is the only genus in the family Saccopharyngidae, and is part of the derived lineage of the "saccopharyngiforms," which includes other mid-water eel species. The name is from Latin saccus meaning "sack" and Greek φάρυγξ, pharynx.
They are generally black in color and can grow to lengths of 2 m (6.5 feet). They have been found at depths of 1,800 metres (5,900 ft), and are known to inhabit the eastern and western Atlantic Ocean and the Gulf Stream.[1] Their tails are tipped by a luminous, bulb-shaped organ. The exact purpose of this organ is unknown, although it is most likely used as a lure, similar to the esca of anglerfish. Unlike pelican eels (Eurypharyngidae), gulper eel diets are largely thought to consist of fish;[2][3][4] a specimen of Saccopharynx lavenbergi was recovered with the digested skull bones of an Oneirodes anglerfish.[5]
Species
The genus has ten recognized species:[6]
- Saccopharynx ampullaceus Harwood, 1827 (Gulper eel)
- Saccopharynx berteli Tighe & J. G. Nielsen, 2000
- Saccopharynx harrisoni Beebe, 1932
- Saccopharynx hjorti Bertin, 1938
- Saccopharynx lavenbergi J. G. Nielsen & Bertelsen, 1985
- Saccopharynx paucovertebratis J. G. Nielsen & Bertelsen, 1985
- Saccopharynx ramosus J. G. Nielsen & Bertelsen, 1985
- Saccopharynx schmidti Bertin, 1934 (Whiptail gulper)
- Saccopharynx thalassa J. G. Nielsen & Bertelsen, 1985
- Saccopharynx trilobatus J. G. Nielsen & Bertelsen, 1985
References
- ↑ Böhlke, Eugenia B.; Böhlke, James E.; Leiby, Mark M.; McCosker, John E.; Bertelsen, E.; Robins, Catherine H.; Robins, C. Richard; Smith, David G. et al. (1989). Orders Anguilliformes and Saccopharyngiformes: Part 9, Volume 1. Yale University Press. ISBN 978-1-933789-19-4.
- ↑ Böhlke, J.E. 1966. Order Lyomeri. pp. 603–628, in: G.W. Mead, H.B. Bigelow, C.M. Breder, D.M. Cohen, D. Merriman, Y.H. Olsen, W.C. Schroeder, L.P. Schultz, and J. Tee-Van (editors), Fishes of the Western North Atlantic, Memoir 1, Pt. 5. Sears Foundation for Marine Research, Yale University, New Haven, Connecticut.
- ↑ Bertelsen, E., J.G. Nielsen, and D.G. Smith. 1989. Suborder Saccopharyngoidei: Families Saccopharyngidae, Eurypharygidae, and Monognathidae. pp. 636–655, in: E.G. Böhlke (editor), Fishes of the Western North Atlantic, Memoir 1, Pt. 9, Vol. 1. Sears Foundation for Marine Research, Yale University, New Haven, Connecticut.
- ↑ Nielsen, J.G., and E. Bertelsen. 1985. The gulper-eel family Saccopharyngidae (Pisces, Anguilliformes). Steenstrupia, Copenhagen, 11(6):157–206.
- ↑ Pietsch, Theodore W. (2009). Oceanic anglerfishes: extraordinary diversity in the deep sea. Berkeley: University of California Press. ISBN 978-0-520-94255-4. OCLC 1298208235.
- ↑ Froese, Rainer, and Daniel Pauly, eds. (2019). "Saccopharyngidae" in FishBase. December 2019 version.
Template:Eel topics Wikidata ☰ Q1538889 entry
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