CalCOFI.io CalCOFI.io open data ecosystem
Species · accepted · checked 2026-08-05

Cyclothone pseudopallida

Slender bristlemouth

WoRMS 127289ITIS 162175GBIF 2347465key worms:127289
i

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

Silhouette · Yan Wong · CC0 1.0 · PhyloPic, drawn from Malacosteus niger
Slender bristlemouth5.8 cm
US quarter2.4 cm

max · worms_attribute

Zoology Accessions Register: Fishes: 1986 - 1994: page 55
Photo · The Trustees of the Natural History Museum, London · CC BY 4.0 · gbif

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

Observed in
i

One row per dataset, 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.

  • Ichthyoplankton 89 obs · 89 events · 1959–2019 · larva
    name used: Cyclothone pseudopallida Slender bristlemouth · code 79
  • Mesopelagic Fish 22 obs · 22 events · 2010–2012
    name used: Cyclothone pseudopallida · code Cyclothone pseudopallida

How big is it
i

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.

Ways in
i

Read from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

Explorerdb-query
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