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Mottled soapfish (Rypticus bicolor) — Serranidae

Mottled soapfish

Rypticus bicolor
Family: Serranidae
LC · Least Concern

The Mottled soapfish (Rypticus bicolor) is a saltwater fish of the family Serranidae that grows up to 28 cm.

Length
28 cm
Water
Saltwater
Depth
3.0–68.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Eastern Pacific; rocky reefs.
Edibility
Not eaten

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Description

The soapfish is a soapfish (Serranidae) from the eastern Pacific. The species has a stocky, brownish body with a smooth, slimy skin. It lives on rocky reefs, where it shelters in caves and crevices but is also seen in the open, often lying motionless in wait. As an ambush hunter it feeds on small fishes and crustaceans. When disturbed its skin secretes a toxic, soapy mucus (grammistin) that deters predators; avoid contact with this mucus and do not eat the fish.

Frequently asked questions

How do you recognise the Mottled soapfish?

The Mottled soapfish has a flattened, disc-shaped body, is mainly brown and shows a spots pattern. When disturbed it secretes a poisonous, soapy skin mucus (grammistine) that deters predators.

Where does the Mottled soapfish live?

The Mottled soapfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Eastern Pacific; rocky reefs.

How big does the Mottled soapfish get?

The Mottled soapfish grows to a maximum of about 28 cm.

Is the Mottled soapfish dangerous to humans?

No, the Mottled soapfish is harmless to humans. When disturbed the skin secretes a toxic, soapy mucus (grammistin) that irritates mucous membranes and tastes bitter; wash your hands after contact, avoid eyes and mouth and do not eat this fish.

Is the Mottled soapfish edible?

The Mottled soapfish is not usually eaten.

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All data

Identification

English name
Mottled soapfish verified
Scientific name
Rypticus bicolor
Family
Serranidae
Other names
Mottled soapfish verified

Appearance

Size class
Medium verified
Max length (cm)
28.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Rounded inferred
Mouth position
Superior (upward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
3.0 verified
Max depth (m)
68.0 verified
Natural range
Eastern Pacific; rocky reefs. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small fishes and crustaceans sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
When disturbed it secretes a poisonous, soapy skin mucus (grammistine) that deters predators. sourced

For anglers

Edibility
Not eaten sourced
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 sourced
First aid
When disturbed the skin secretes a toxic, soapy mucus (grammistin) that irritates mucous membranes and tastes bitter; wash your hands after contact, avoid eyes and mouth and do not eat this fish. sourced

Status & sources

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

Same genus Rypticus

More from the family Serranidae

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