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

Hypomesus

smallmouth smelts

WoRMS 254339ITIS 162029key worms:254339
i

2026-08-05: itis_id 162029 via WoRMS external link

Silhouette · xgirouxb · Public Domain Mark · PhyloPic, drawn from Thaleichthys pacificus

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

Delta Smelt (Hypomesus transpacificus). Native to the Sacramento–San Joaquin River Delta region of northern California.
Photo · Peterson, B. Moose / U.S. Fish and Wildlife Service · Public domain · commons

Hypomesus is a genus of smelts (Osmeridae), consisting of five species found in the northern hemisphere.W CalCOFI holds 1 observations of it in 1 dataset between 2015 and 2015.R

1
observations
1
records
2015
years
1
datasets

Observed in

Nothing is keyed to this taxon directly — every observation under it belongs to one of the taxa below.

Under it · 1 taxon

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
R
library(calcofi4r)
con <- cc_get_db()                      # the promoted release
tbl(con, "obs_bio") |> filter(taxon_key == "worms:254339")