Species · accepted · checked 2026-08-05

Citharichthys sordidus

Pacific sanddab

WoRMS 275694ITIS 172716GBIF 2408726key worms:275694

2026-08-05: itis_id 172716 via WoRMS external link

Silhouette · Nathan Hermann · CC0 1.0 · PhyloPic, drawn from Citharichthys arctifrons

Pacific sanddab41 cm

bongo net ring71 cm

max · worms_attribute

Photograph of Citharichthys sordidus — Photo · anonymous, no known copyright restrictions (public domain) · Public domain · inat

The Pacific sanddab, also known as the soft flounder, mottle sanddab, or megrim, is a fish species in the order Pleuronectiformes, or flatfish. It is by far the most common sanddab, and it shares its habitat with the longfin sanddab and the speckled sanddab.W CalCOFI holds 3,693 observations of it in 1 dataset between 1954 and 2023, as larva and egg.R

3,693
observations: 3,693
records: 3,693
sampling events: 1954–2023
years: 1
datasets: larva · egg
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 3,693 obs · 3,693 events · 1954–2023 · larva · egg
name used: Citharichthys sordidus Pacific sanddab · code 923

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 Ichthyoplankton table constrained to this taxon

https://erddap.calcofi.io/erddap/tabledap/swfsc_ichthyo.html?&taxon_key=%22worms:275694%22

Citharichthys sordidus

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/.