Abudefduf declivifrons
Mexican nightsergeant
i
2026-08-05: itis_id 615041 via WoRMS external link
Abudefduf declivifrons, commonly known as the Mexican nightsergeant, is a species of damselfish in the family Pomacentridae native to the eastern Pacific Ocean. It is known only from Mexico, where it ranges from the Gulf of California to Acapulco.W CalCOFI holds 1 observations of it in 1 dataset between 2000 and 2000, as larva.R
- 1
- observations
- 1
- records
- 1
- sampling events
- 2000
- years
- 1
- datasets
- larva
- life stages
- 18 cm
- max length
Observed in 1 dataseti
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.
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.
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name used: Abudefduf declivifrons Mexican nightsergeant · code
621
Ways inExplorerdb-queryERDDAPRPythonThis page as JSON
Code and endpoints ERDDAP · R · Python · JSON
library(calcofi4r) con <- cc_get_db() # the promoted release tbl(con, "obs_bio") |> filter(taxon_key == "worms:273698")
import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'worms:273698'").df()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 18 cm max
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 Abudefduf
Credits silhouette · photo · text · length
- Silhouette · Nicolas Mouquet · CC0 1.0 · PhyloPic, drawn from Abudefduf abdominalis · source
- Photo · Alberto Alcalá · CC BY 4.0 · inat · source
- Text · Wikipedia, “Abudefduf declivifrons” · CC BY-SA 4.0 · revision 1362843493
- Length · worms_attribute
Elsewhere Wikidata · iNaturalist · FishBase
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 ↗