Robbermask Cardinalfish

Apogon lateralis

Apogonidae · freshwater and saltwater and brackish water fish

1 minute read · Species guide

Robbermask Cardinalfish field guide illustration

About Robbermask Cardinalfish

The robbermask cardinalfish is an Indo-Pacific species also treated as Fibramia lateralis. Its range extends from East Africa to Tonga, north to Japan and south to Lord Howe Island.

Range and natural history

It tolerates varying salinity and can occur in fresh water, estuaries and sheltered shallow reefs. Fish gather around clumps of algae and algae-covered rubble, including at river mouths. Its association with aggregations and sheltered structure provides a more specific habitat picture than simply calling it a reef fish.

Fishes of Australia documents the name Fibramia lateralis and cites older references using Apogon lateralis. Those names should be reconciled when comparing historical observations with modern records.

Sources: Fibramia lateralis species summary; Taxonomy and name history

Guide sources

Research reviewed 2026-10-19.

Range

Where it lives

GBIF holds no US occurrence record for this species under this name. That is a gap in the record, not evidence that the fish is absent: ITIS files it as a US species.

Habitat

Water and movement

Water
WoRMS records this species in fresh water, brackish water and the sea.

Classification

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Superclass
Actinopterygii
Class
Teleostei
Order
Perciformes
Genus
Apogon
Species
Apogon lateralis
ITIS TSN
168225
WoRMS AphiaID
209319
GBIF key
8203848
Outside the US
ITIS also files it in Central Pacific Territories.

Common questions about Robbermask Cardinalfish

What is the scientific name of Robbermask Cardinalfish?
The scientific name is Apogon lateralis, in the family Apogonidae. Classification follows ITIS.
Does Robbermask Cardinalfish live in fresh water or salt water?
WoRMS records this species in fresh water, brackish water and the sea.

Closest relatives

Other Apogon species

Same family

More Apogonidae