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

Scopelarchus guentheri

Staring pearleye

WoRMS 217724ITIS 162561GBIF 2401435key worms:217724
i

2026-08-05: itis_id 162561 via WoRMS external link

Silhouette · Erika Schumacher · CC BY-NC 3.0 · PhyloPic, drawn from Synodus foetens
Staring pearleye12 cm
US quarter2.4 cm

max · worms_attribute

Photograph of Scopelarchus guentheri
Photo · Alfred William Alcock , no known copyright restrictions (public domain) · Public domain · inat

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

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 307 obs · 307 events · 1959–2017 · larva
    name used: Scopelarchus guentheri Staring pearleye · code 340

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/.

Explorerdb-query
ERDDAPCalCOFI's own server, the Ichthyoplankton table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/swfsc_ichthyo.html?&taxon_key=%22worms:217724%22