king snake eel
Ophichthus rex Böhlke & Caruso, 1980
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The king snake eel (Ophichthus rex) is an eel in the family Ophichthidae (worm/snake eels). It was described by James Erwin Böhlke and John H. Caruso in 1980. It is a marine, tropical eel which is known from Florida to Texas, USA, in the northern Gulf of Mexico in the western Atlantic Ocean. It dwells at a depth range of 15 to 365 meters (49 to 1,198 ft), and inhabits offshore waters. King snake eels can reach a total length of 211 centimeters (83 in); the maximum recorded weight is 23.6 kilograms (52 lb). caught by Patrick Lemire on the Texsun II out of Galveston, Texas, in 1997.
The King snake eel is often caught near oil platforms by anglers.This eel is sometimes also referred to as "giant snake eel", mud eel (in reference to their preferred burrowing substrate), slime eel, worm eel, and keoghfish.
The name rex is from the Latin word meaning king. It is believed to be named this for the large size that the species is known for.
Wikipedia contributors, King snake eel; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T08:05:28.045635+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Ophichthus rex Böhlke & Caruso, 1980
- Name authority
- Böhlke & Caruso, 1980
- Common name
- king snake eel
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Anguilliformes
- Family
- Ophichthidae
- Genus
- Ophichthus
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: yes · Freshwater: no · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderAnguilliformes
- familyOphichthidae Günther, 1870
- subfamilyOphichthinae Günther, 1870
- genusOphichthus Ahl, 1789
- speciesOphichthus rex Böhlke & Caruso, 1980
Close classified relatives
These entries share the source’s genus, Ophichthus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Ophichthus aniptocheilos McCosker, 2010 | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| thin snake eelOphichthus apachus McCosker & Rosenblatt, 1998 | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| bluntnose snake-eelOphichthus apicalis (Anonymous [Bennett], 1830) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus arneutes McCosker & Rosenblatt, 1998 | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus celebicus (Bleeker, 1856) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus congroides McCosker, 2010 | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus cylindroideus (Ranzani, 1839) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus erabo (Jordan & Snyder, 1901) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus fowleri (Jordan & Evermann, 1903) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus grandoculis (Cantor, 1849) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus humanni McCosker, 2010 | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
| Ophichthus ishiyamorum McCosker, 2010 | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- Böhlke, J. E., & Caruso, J. H. (1980). Ophichthus rex: a new giant snake eel from the Gulf of Mexico (Anguilliformes, Ophichthidae). Proceedings of the Academy of Natural Sciences of Philadelphia, 132: 239–244. Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:49VJN. Classification follows source parent identifiers. English common names may vary by region.