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Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Osteichthyes
Classis: Actinopterygii
Subclassis: Neopterygii
Infraclassis: Teleostei
Superordo: Elopomorpha
Ordo: Saccopharyngiformes
Familia: Saccopharyngidae
Genus: Saccopharynx

Saccopharynx is a genus of deep sea eel-like fishes with large mouths, distensible stomachs and long scaleless bodies. It is the only genus in the family Saccopharyngidae. The name is from Latin saccus meaning "sack" and Greek pharynx.

Like other saccopharyngiforms, fishes in this genus are known as gulpers or gulper eels.

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 m (6,000 feet). Their tails are tipped by a luminous bulb-shaped organ. The exact purpose of this organ is unknown, though it is unlikely it is used as a lure.


There are eleven species:

* Saccopharynx ampullaceus (Harwood, 1827)
* Saccopharynx berteli Tighe & Nielsen, 2000
* Saccopharynx flagellum Cuvier, 1829
* Saccopharynx harrisoni Beebe, 1932
* Saccopharynx hjorti Bertin, 1938
* Saccopharynx lavenbergi Nielsen & Bertelsen, 1985
* Saccopharynx paucovertebratis Nielsen & Bertelsen, 1985
* Saccopharynx ramosus Nielsen & Bertelsen, 1985
* Saccopharynx schmidti Bertin, 1934
* Saccopharynx thalassa Nielsen & Bertelsen, 1985
* Saccopharynx trilobatus Nielsen & Bertelsen, 1985


* Froese, Rainer, and Daniel Pauly, eds. (2006). "Saccopharyngidae" in FishBase. January 2006 version.

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Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License