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NATURAL HISTORY · CATALOGUE RECORD

Hymenocephalus billsam Marshall & Iwamoto, 1973

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.

Identity & source status

Scientific name
Hymenocephalus billsam Marshall & Iwamoto, 1973
Name authority
Marshall & Iwamoto, 1973
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Gadiformes
Family
Macrouridae
Genus
Hymenocephalus
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. orderGadiformes
  11. familyMacrouridae Bonaparte, 1831
  12. subfamilyMacrourinae Bonaparte, 1831
  13. genusHymenocephalus Giglioli, 1884
  14. speciesHymenocephalus billsam Marshall & Iwamoto, 1973

Close classified relatives

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

SpeciesClassificationSource status
Hymenocephalus antraeus Gilbert & Cramer, 1897MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus barbatulus Gilbert & Hubbs, 1920MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus grimaldii Weber, 1913MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus hachijoensis Okamura, 1970MacrouridaeChordataAccepted speciesExtinction status not supplied
glasshead grenadierHymenocephalus italicus Giglioli, 1884MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus longipes Smith & Radcliffe, 1912MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus maculicaudus McMillan & Iwamoto, 2014MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus torvus Smith & Radcliffe, 1912MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus megalops Iwamoto & Merrett, 1997MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus iwamotoi Schwarzhans, 2014MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus aeger Gilbert & Hubbs, 1920MacrouridaeChordataAccepted speciesExtinction status not supplied
Hymenocephalus aterrimus Gilbert, 1905MacrouridaeChordataAccepted speciesExtinction status not supplied

Browse 304 records assigned to Macrouridae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Hymenocephalus billsamorum Iwamoto, 1990 Iwamoto, 1990synonym

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. Marshall, N. B., & Iwamoto, T. (1973). Fishes of the Western North Atlantic. Memoirs of the Sears Foundation of Marine Research, Genus Coelorhynchus (pp. 538–563), Genus Coryphaenoides (pp. 565–580), Genus Hymenocephalus (pp. 601–612), Genus Nezumia (pp. 624–649) Mem. 1 (pt 6). 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:3NJ8P. Classification follows source parent identifiers. English common names may vary by region.