Species · accepted · checked 2026-08-05

Cyclothone atraria

Black bristlemouth

WoRMS 274943ITIS 162165GBIF 2347468key worms:274943

2026-08-05: itis_id 162165 via WoRMS external link

Silhouette · Yan Wong · CC0 1.0 · PhyloPic, drawn from Malacosteus niger

Black bristlemouth6.2 cm

US quarter2.4 cm

max · worms_attribute

Cyclothone atraria Gilbert, new species. Type Subject: Gonostomatidae, Cyclothone Tag: Fish — Photo · Charles Henry Gilbert · Public domain · commons

Cyclothone atraria, commonly known as the deep-water bristlemouth, is a species of ray-finned fish in the genus Cyclothone. It is found in the North Pacific and is considered to be a part of the most abundant fish genus.W CalCOFI holds 4 observations of it in 1 dataset between 2010 and 2012.R

4
observations: 4
records: 4
sampling events: 2010–2012
years: 1
datasets

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.

Mesopelagic Fish 4 obs · 4 events · 2010–2012
name used: Cyclothone atraria · code Cyclothone atraria

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/.

Explorer db-query

ERDDAPCalCOFI's own server, the Mesopelagic Fish table constrained to this taxon

https://erddap.calcofi.io/erddap/tabledap/sio_mesopelagic-fish.html?&taxon_key=%22worms:274943%22

Cyclothone atraria

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

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/.