CalCOFI.io CalCOFI.io open data ecosystem

Omosudis lowii

hammerjaw

Speciesaccepted · checked 2026-08-05WoRMS 272087ITIS 644694GBIF 2401039key worms:272087
i

2026-08-05: itis_id 644694 via WoRMS external link

The hammerjaw, Omosudis lowii, is a small deep-sea aulopiform fish, found worldwide in tropical and temperate waters to 4,000 m (13,000 ft) depth. It is the only representative of its family, Omosudidae.W CalCOFI holds 1 observations of it in 1 dataset between 2002 and 2002, as larva.R

1
observations
1
records
1
sampling events
2002
years
1
datasets
larva
life stages
23 cm
max length
Hammerjaw (Omosudis lowii)
Photo · PIRO/NOAA Observer Program · Public domain · commons

Observed in 1 dataset
i

One row per dataset, and beside it one cell per year, darker with more observations — the same strip the front door draws per dataset. Each row ends with the name that dataset uses (dataset_taxon); the accepted name is written once, in the title above. A quiet pill marks a name the authority does not accept.

  • 1 obs1 events2002larva
    name used: Omosudis lowii · code 331

Ways inExplorerdb-queryERDDAPRPythonThis page as JSON

Code and endpoints ERDDAP · R · Python · JSON
ERDDAPCalCOFI's own server, the Ichthyoplankton table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/swfsc_ichthyo.html?&taxon_key=%22worms:272087%22

Read from taxa.json of release v2026.10.20, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it 23 cm max
hammerjaw23 cm
bongo net ring71 cm

max · worms_attribute

Every mark is a measured length with its own source — hover one to read it. The reference objects are _data/size_reference.csv: two of them, the 505 µm bongo mesh and the net's ring, are CalCOFI's own sampling gear.

Life stages larva
  • Ichthyoplankton larva

The stages each dataset records for it, from the release's obs_bio.life_stage. Their lengths are under How big is it.

Lineage 13 ranks · Biota to Omosudis
Credits silhouette · photo · text · length
  • Silhouette · Erika Schumacher · CC BY-NC 3.0 · PhyloPic, drawn from Synodus foetens · source
  • Photo · PIRO/NOAA Observer Program · Public domain · commons · source
  • Text · Wikipedia, “Hammerjaw” · CC BY-SA 4.0 · revision 1354731082
  • Length · worms_attribute
Elsewhere Wikidata · iNaturalist · FishBase

WikidataiNaturalistFishBase

The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.

Cite the release, v2026.10.20

Cite the release, v2026.10.20; each dataset's own citation, licence and DOI are on its page. How to cite ↗