Euphausia

Genusaccepted · checked 2026-08-05WoRMS 110673ITIS 95501key worms:110673

2026-08-05: itis_id 95501 via WoRMS external link

Euphausia is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill and ice krill from the Southern Ocean, and North Pacific krill in the Pacific Ocean.W CalCOFI holds 34,939 observations of it in 1 dataset between 1951 and 2019, across 11 taxa under it.R

34,939
observations: 34,939
records: 1951–2019
years: 1
datasets: 11
species under it

Photo · Krill666.jpg: Uwe Kils I am willing to give the image in 1700 resolution to Wikipedia Uwe Kils · CC BY-SA 3.0 · commons

Observed in nothing keyed to it directly

Every observation under it belongs to one of the taxa under it — 11 taxa · Euphausia pacifica most observed, in the fold below.

Ways inExplorer db-query R Python This page as JSON

Code and endpoints R · Python · JSON

library(calcofi4r)
con <- cc_get_db()                      # the promoted release
tbl(con, "obs_bio") |> filter(taxon_key == "worms:110673")

Read from taxa.json of release v2026.10.21, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it not on record

Not on record: no authority the fetcher reads carries a length for this taxon (a genus page could show the range of its species).

Under it 11 taxa · Euphausia pacifica most observed

sp Euphausia pacifica Pacific krill21,186
sp Euphausia recurva6,338
sp Euphausia gibboides4,432
sp Euphausia eximia1,311
sp Euphausia hemigibba934
sp Euphausia mutica658
sp Euphausia brevis66
sp Euphausia distinguenda7
sp Euphausia tenera4
sp Euphausia lamelligera2
sp Euphausia diomedeae1

Lineage 10 ranks · Biota to Euphausiidae

Credits silhouette · photo · text

Silhouette · Steven Haddock · Public Domain Mark · PhyloPic, drawn from Euphausia pacifica · source
Photo · Krill666.jpg: Uwe Kils I am willing to give the image in 1700 resolution to Wikipedia Uwe Kils · CC BY-SA 3.0 · commons · source
Text · Wikipedia, “Euphausia” · CC BY-SA 4.0 · revision 1182027971

Elsewhere Wikidata · iNaturalist · GBIF

Wikidata iNaturalist GBIF

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

Cite the release, v2026.10.21

Cite the release, v2026.10.21; each dataset's own citation, licence and DOI are on its page. How to cite ↗