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plain worm eel

Pseudomyrophis micropinna Wade, 1946

Source-backed taxonomic record

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 Smallfin worm-eel (Pseudomyrophis micropinna, also known as the Plain worm eel) is an eel in the family Ophichthidae (worm/snake eels). It was described by Charles Barkley Wade in 1946. It is a marine, tropical eel which is known from the eastern central and southeastern Pacific Ocean, including Nicaragua, Colombia, Panama and Costa Rica. It dwells at a depth range of 100 to 200 metres (330 to 660 ft), and inhabits sediments of mud. Males can reach a maximum total length of 16 centimetres (6.3 in).

Due to its wide distribution, lack of known threats, and lack of observed population decline, the IUCN redlist currently lists the Smallfin worm-eel as Least Concern.

Wikipedia contributors, Smallfin worm-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
Pseudomyrophis micropinna Wade, 1946
Name authority
Wade, 1946
Common name
plain worm eel
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Anguilliformes
Family
Ophichthidae
Genus
Pseudomyrophis
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.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderAnguilliformes
  11. familyOphichthidae Günther, 1870
  12. subfamilyMyrophinae Kaup, 1856
  13. genusPseudomyrophis Wade, 1946
  14. speciesPseudomyrophis micropinna Wade, 1946

Close classified relatives

These entries share the source’s genus, Pseudomyrophis. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Pseudomyrophis nimius Böhlke, 1960OphichthidaeChordataAccepted speciesExtinction status not supplied
Pseudomyrophis atlanticus Blache, 1975OphichthidaeChordataAccepted speciesExtinction status not supplied
Pseudomyrophis frio (Jordan & Davis, 1891)OphichthidaeChordataAccepted speciesExtinction status not supplied
diminutive worm eelPseudomyrophis fugesae McCosker, Böhlke & Böhlke, 1989OphichthidaeChordataAccepted speciesExtinction status not supplied

Browse 283 records assigned to Ophichthidae.

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.

  1. Wade, & B, C. (1946). Two new genera and five new species of apodal fishes from the eastern Pacific. Allan Hancock Pacific Expedition 1932-40, Los Angeles, v. 9 (no. 7): 181–213, Pls. 24–28. 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:4P4HK. Classification follows source parent identifiers. English common names may vary by region.