Scopelarchus guentheri
Staring pearleye
i
2026-08-05: itis_id 162561 via WoRMS external link
Scopelarchus guentheri, commonly known as the staring pearleye, is a mesopelagic ray-finned fish known for its unique visual system consisting of two retinas in each eye as well as a distinctive 'pearl organ' found inside each eye. Like other members of the genus Scopelarchus, S. guentheri has an opaque colored body.W CalCOFI holds 307 observations of it in 1 dataset between 1959 and 2017, as larva.R
- 307
- observations
- 307
- records
- 307
- sampling events
- 1959–2017
- years
- 1
- datasets
- larva
- life stages
- 12 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.
-
name used: Scopelarchus guentheri Staring pearleye · code
340
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:217724")
import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'worms:217724'").df()Read from taxa.json of release v2026.10.20, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.
How big is it 12 cm max · flexion 9–12 mm
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 13 ranks · Biota to Scopelarchus
Credits silhouette · photo · text · length
- Silhouette · Erika Schumacher · CC BY-NC 3.0 · PhyloPic, drawn from Synodus foetens · source
- Photo · Alfred William Alcock , no known copyright restrictions (public domain) · Public domain · inat · source
- Text · Wikipedia, “Scopelarchus guentheri” · CC BY-SA 4.0 · revision 1315295998
- 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, v2026.10.20
Cite the release, v2026.10.20; each dataset's own citation, licence and DOI are on its page. How to cite ↗