surf eel
Ichthyapus ophioneus (Evermann & Marsh, 1900)
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 surf eel (Ichthyapus ophioneus), also known as the Finless snake eel in the United States, is an eel in the family Ophichthidae (worm/snake eels). It was described by Barton Warren Evermann and Millard Caleb Marsh in 1900, originally under the genus Sphagebranchus. It is a marine, tropical eel which is known from the western and eastern Atlantic Ocean, including Bermuda, the Bahamas, Florida, USA; Puerto Rico, the Virgin Islands, northern South America, and St. Helena Island. It dwells at a maximum depth of 35 metres (115 ft), most often between 5 and 15 metres (16 and 49 ft), and forms burrows in sand bottoms in surf areas, from which its common name is derived. Males can reach a maximum total length of 45 centimetres (18 in).
Wikipedia contributors, Surf eel; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:44:06.172031+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Ichthyapus ophioneus (Evermann & Marsh, 1900)
- Name authority
- (Evermann & Marsh, 1900)
- Common name
- surf eel
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Anguilliformes
- Family
- Ophichthidae
- Genus
- Ichthyapus
- 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
- genusIchthyapus Brisout de Barneville, 1847
- speciesIchthyapus ophioneus (Evermann & Marsh, 1900)
Close classified relatives
These entries share the source’s genus, Ichthyapus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| smiling sand eelIchthyapus selachops (Jordan & Gilbert, 1882) | OphichthidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Rhinenchelys ophioneus (Evermann & Marsh, 1900) (Evermann & Marsh, 1900) | synonym |
| Sphagebranchus conklini Eigenmann, 1916 Eigenmann, 1916 | synonym |
| Caecula ophioneus (Evermann & Marsh, 1900) (Evermann & Marsh, 1900) | synonym |
| Sphagebranchus ophioneus Evermann & Marsh, 1900 Evermann & Marsh, 1900 | synonym |
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.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=279112 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:6MTPC. Classification follows source parent identifiers. English common names may vary by region.