Species · accepted · checked 2026-08-05

Maurolicus muelleri

Muller's pearlsides

WoRMS 127312ITIS 162187GBIF 2347501key worms:127312

2026-08-05: itis_id 162187 via WoRMS external link

Silhouette · Christopher Kenaley · CC0 1.0 · PhyloPic, drawn from Sternoptyx pseudobscura

Muller's pearlsides8 cm

US quarter2.4 cm

max · worms_attribute

Photograph of Maurolicus muelleri — Photo · Stan Rullman · CC BY 4.0 · inat

Maurolicus muelleri, commonly referred to as Mueller's pearlside, Mueller's bristle-mouth fish, or the silvery lightfish, is a marine hatchetfish in the genus Maurolicus, found in deep tropical, subtropical and temperate waters of the Pacific Ocean and the Atlantic Ocean, from the surface to depths of 1,500 metres (4,9…W CalCOFI holds 6 observations of it in 1 dataset between 2000 and 2006, as larva.R

6
observations: 6
records: 6
sampling events: 2000–2006
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 6 obs · 6 events · 2000–2006 · larva
name used: Maurolicus muelleri · code 98

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:127312%22

Maurolicus muelleri

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/.