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Cyclothone acclinidens

Benttooth bristlemouth

Speciesaccepted · checked 2026-08-05WoRMS 127282ITIS 162172GBIF 2347458key worms:127282
i

2026-08-05: itis_id 162172 via WoRMS external link

Cyclothone acclinidens, commonly known as the benttooth bristlemouth, is a species of bristlemouth. It is found in the Atlantic, Pacific, and Indian Oceans.W CalCOFI holds 737 observations of it in 2 datasets between 1959 and 2023, as larva.R

737
observations
737
records
737
sampling events
1959–2023
years
2
datasets
larva
life stages
6.5 cm
max length
Photograph of Cyclothone acclinidens
Photo · MarineSci12 · CC BY-SA 4.0 · inat

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.

  • 711 obs711 events1959–2023larva
    name used: Cyclothone acclinidens Benttooth bristlemouth · code 77
  • 26 obs26 events2010–2012
    name used: Cyclothone acclinidens · code Cyclothone acclinidens

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:127282%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 6.5 cm max · flexion 5–6 mm
Benttooth bristlemouth6.5 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 · MarineSci12 · CC BY-SA 4.0 · inat · source
  • Text · Wikipedia, “Cyclothone acclinidens” · CC BY-SA 4.0 · revision 1362836577
  • 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 ↗