CalCOFI.io CalCOFI.io open data ecosystem

Hygophum atratum

Thickhead lanternfish

Speciesaccepted · checked 2026-08-05WoRMS 272704ITIS 162695GBIF 5213294key worms:272704
i

2026-08-05: itis_id 162695 via WoRMS external link

CalCOFI holds 1,585 observations of it in 1 dataset between 1951 and 2006, as larva.R

1,585
observations
1,585
records
1,585
sampling events
1951–2006
years
1
datasets
larva
life stages
6 cm
max length
MCZ:Ich:28491 Myctophum atratum
Photo · © President and Fellows of Harvard College · CC BY-NC-SA 3.0 · gbif NC

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.

  • 1,585 obs1,585 events1951–2006larva
    name used: Hygophum atratum Thickhead lanternfish · code 251

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:272704%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 6 cm max · flexion 7.8–9.7 mm
Thickhead lanternfish6 cm
US quarter2.4 cm

max · fishbase

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 Hygophum
Credits silhouette · photo · length
  • Silhouette · T. Michael Keesey · Public Domain Mark · PhyloPic, drawn from Myctophum punctatum · source
  • Photo · © President and Fellows of Harvard College · CC BY-NC-SA 3.0 · gbif · source
  • Length · fishbase
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 ↗