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Scissortail chromis (Chromis atrilobata) — Pomacentridae

Scissortail chromis

Chromis atrilobata
Family: Pomacentridae

The Scissortail chromis (Chromis atrilobata) is a saltwater fish of the family Pomacentridae that grows up to 12 cm.

Length
12 cm
Water
Saltwater
Diet
Carnivore
Behaviour
Large groups
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Eastern Pacific, from Baja California to northern Peru.
Edibility
Not eaten

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Description

The scissortail chromis is a reef fish of the family Pomacentridae from the eastern Pacific. The species reaches about 12 cm and has a brown-grey body with a white spot and a deeply forked, scissor-like tail, to which the name refers. It forms large schools that hover above rocky reefs and coral in the water column, feeding on zooplankton. When threatened the school dives quickly back to the reef. The eggs are laid on the bottom and guarded and aerated by the male. The species is a common and conspicuous sight on reef slopes.

Frequently asked questions

How do you recognise the Scissortail chromis?

The Scissortail chromis has a torpedo-shaped body, is mainly brown and shows a plain pattern. Deeply forked, scissor-shaped tail; forms large plankton-eating shoals above reefs.

Where does the Scissortail chromis live?

The Scissortail chromis lives in the sea (marine waters) and is mostly found around stony or rocky ground. Eastern Pacific, from Baja California to northern Peru.

How big does the Scissortail chromis get?

The Scissortail chromis grows to a maximum of about 12 cm. On average the species is around 9 cm.

Is the Scissortail chromis dangerous to humans?

No, the Scissortail chromis is harmless to humans. None required: this species is harmless to humans.

Is the Scissortail chromis edible?

The Scissortail chromis is not usually eaten.

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All data

Identification

English name
Scissortail chromis sourced
Scientific name
Chromis atrilobata
Family
Pomacentridae
Other names
Scissortail damselfish

Appearance

Size class
Small
Max length (cm)
12.0 sourced
Average length (cm)
9.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Natural range
Eastern Pacific, from Baja California to northern Peru. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Zooplankton sourced
Social behaviour
Large groups inferred
Territorial
Yes inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Deeply forked, scissor-shaped tail; forms large plankton-eating shoals above reefs. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Chromis

More from the family Pomacentridae

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