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Japetella diaphana

Diaphanous pelagic octopod

Speciesaccepted · checked 2026-08-05WoRMS 138849ITIS 82655GBIF 2289230key worms:138849
i

2026-08-05: itis_id 82655 via WoRMS external link

Japetella diaphana, also known as the midwater octopus, is a species of pelagic deep-sea octopus from the subfamily Bolitaeninae in the family Amphitretidae. It inhabits the mesopelagic and bathypelagic zones of all three major oceans, and is known for its transparent body and bioluminescence.W CalCOFI holds 34 observations of it in 1 dataset between 2003 and 2022, as invert.R

34
observations
34
records
34
sampling events
2003–2022
years
1
datasets
invert
life stages
16 cm
max length
Photograph of Japetella diaphana
Photo · Ewald Rübsamen, no known copyright restrictions (public domain) · Public domain · inat

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.

  • 34 obs34 events2003–2022invert
    name used: Japetella diaphana · code 9752

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:138849%22

Read from taxa.json of release v2026.10.21, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it 16 cm max
Diaphanous pelagic octopod16 cm
bongo net ring71 cm

max · sealifebase

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 invert
  • Ichthyoplankton invert

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

Lineage 12 ranks · Biota to Japetella
Credits silhouette · photo · text · length
  • Silhouette · Noah Schlottman · CC BY-SA 3.0 · PhyloPic, drawn from Octopoda · source
  • Photo · Ewald Rübsamen, no known copyright restrictions (public domain) · Public domain · inat · source
  • Text · Wikipedia, “Japetella diaphana” · CC BY-SA 4.0 · revision 1371756677
  • Length · sealifebase
Elsewhere Wikidata · iNaturalist

WikidataiNaturalist

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

Cite the release, v2026.10.21

Cite the release, v2026.10.21; each dataset's own citation, licence and DOI are on its page. How to cite ↗