CalCOFI.io CalCOFI.io open data ecosystem

Dolichopteryx longipes

Brownsnout spookfish

Speciesaccepted · checked 2026-08-05WoRMS 126731ITIS 162103key worms:126731
i

2026-08-05: itis_id 162103 via WoRMS external link

The brownsnout spookfish or brown-snout spookfish is a species of barreleye in the family Opisthoproctidae. It and the glasshead barreleye fish are the only vertebrates known to employ a mirror, in addition to a lens, to focus an image in its eyes.W CalCOFI holds 6 observations of it in 1 dataset between 1969 and 2002, as larva.R

6
observations
6
records
6
sampling events
1969–2002
years
1
datasets
larva
life stages
18 cm
max length
Photograph of Dolichopteryx longipes
Photo · anonymous, 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.

  • 6 obs6 events1969–2002larva
    name used: Dolichopteryx longipes Brownsnout spookfish · code 52

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:126731%22

Read from taxa.json of release v2026.10.19, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it 18 cm max
Brownsnout spookfish18 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 12 ranks · Biota to Dolichopteryx
Credits silhouette · photo · text · length · plate
  • Silhouette · T. Michael Keesey · Public Domain Mark · PhyloPic, drawn from Winteria telescopa · source
  • Photo · anonymous, no known copyright restrictions (public domain) · Public domain · inat · source
  • Text · Wikipedia, “Brownsnout spookfish” · CC BY-SA 4.0 · revision 1314389501
  • Length · worms_attribute
  • Plate · Matarese, Kendall, Blood & Vinter 1989, NOAA Tech. Rep. NMFS 80, via the AFSC Ichthyoplankton Information System · Public domain (US Government work) · noaa_iis · source
Elsewhere Wikidata · iNaturalist · FishBase · GBIF

WikidataiNaturalistFishBaseGBIF

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

Cite the release, v2026.10.19

Cite the release, v2026.10.19; each dataset's own citation, licence and DOI are on its page. How to cite ↗