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Whitespot gregory (Dischistodus pseudochrysopoecilus) — Pomacentridae

Whitespot gregory

Dischistodus pseudochrysopoecilus
Family: Pomacentridae

The Whitespot gregory (Dischistodus pseudochrysopoecilus) is a saltwater fish of the family Pomacentridae that grows up to 18 cm.

Length
18 cm
Water
Saltwater
Depth
1.0–5.0 m
Diet
Herbivore
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Oceania: Australia, Solomon Is., China, Indonesia, Malaysia, New Caledonia and others

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Description

The whitespot gregory is a damselfish (Pomacentridae) from the western Pacific. The species grows to about 18 cm and has a drab-brown, disc-shaped body with a conspicuous white spot on the back. As a territorial reef-dweller it fiercely defends an algal garden on shallow coral and rubble reefs, whose algae it grazes. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Whitespot gregory?

The Whitespot gregory has a torpedo-shaped body and is mainly brown.

Where does the Whitespot gregory live?

The Whitespot gregory lives in the sea (marine waters) and is mostly found around stony or rocky ground. Oceania: Australia, Solomon Is., China, Indonesia, Malaysia, New Caledonia and others

How big does the Whitespot gregory get?

The Whitespot gregory grows to a maximum of about 18 cm.

Is the Whitespot gregory dangerous to humans?

No, the Whitespot gregory is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

More photos

Whitespot gregory (Dischistodus pseudochrysopoecilus) — Pomacentridae — 2
iNaturalist ((c) Ken Cross, some rights reserved (CC BY-NC))
Whitespot gregory (Dischistodus pseudochrysopoecilus) — Pomacentridae — 3
Wikimedia Commons — Rickard Zerpe (CC BY 2.0)
Whitespot gregory (Dischistodus pseudochrysopoecilus) — Pomacentridae — 4
iNaturalist ((c) Debra Baker, some rights reserved (CC BY))
Whitespot gregory (Dischistodus pseudochrysopoecilus) — Pomacentridae — 5
iNaturalist ((c) Wayne and Pam Osborn, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Whitespot gregory sourced
Scientific name
Dischistodus pseudochrysopoecilus
Family
Pomacentridae
Other names
Monarch damsel; Damselfish; Monarch damselfish verified

Appearance

Size class
Medium verified
Max length (cm)
18.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Tail shape
Forked inferred

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
5.0 verified
Natural range
Oceania: Australia, Solomon Is., China, Indonesia, Malaysia, New Caledonia and others sourced
Origin
Native inferred

Behaviour & biology

Diet
Herbivore sourced
Diet (detail)
Algae, seaweeds and plant material inferred
Territorial
Yes sourced
Activity
Diurnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Dischistodus

More from the family Pomacentridae

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