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Cyclothone pseudopallida

Slender bristlemouth

Speciesaccepted · checked 2026-08-05WoRMS 127289ITIS 162175GBIF 2347465key worms:127289
i

2026-08-05: itis_id 162175 via WoRMS external link

Cyclothone pseudopallida, commonly known as the slender bristlemouth, is a species of ray-finned fish in the genus Cyclothone.W CalCOFI holds 111 observations of it in 2 datasets between 1959 and 2019, as larva.R

111
observations
111
records
111
sampling events
1959–2019
years
2
datasets
larva
life stages
5.8 cm
max length
Zoology Accessions Register: Fishes: 1986 - 1994: page 55
Photo · The Trustees of the Natural History Museum, London · CC BY 4.0 · gbif

Observed in 2 datasets
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.

  • 89 obs89 events1959–2019larva
    name used: Cyclothone pseudopallida Slender bristlemouth · code 79
  • 22 obs22 events2010–2012
    name used: Cyclothone pseudopallida · code Cyclothone pseudopallida

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:127289%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 5.8 cm max · egg 0.48–0.58 mm
Slender bristlemouth5.8 cm
US quarter2.4 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 Cyclothone
Credits silhouette · photo · text · length · plate
  • Silhouette · Yan Wong · CC0 1.0 · PhyloPic, drawn from Malacosteus niger · source
  • Photo · The Trustees of the Natural History Museum, London · CC BY 4.0 · gbif · source
  • Text · Wikipedia, “Cyclothone pseudopallida” · CC BY-SA 4.0 · revision 1090600943
  • 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

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, v2026.10.19

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