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Freckled Anglerfish

Freckled Anglerfish

Antennarius Coccineus

Quick Facts

Scientific nameAntennarius Coccineus

Other namesFreckled Angler, Freckled Frogfish, Scarlet Anglerfish, Scarlet Frogfish, Spotfin Frogfish

FamilyAnglerfish / Antennaridae

Distribution

Habitat & AU DistributionCoastal waters, lagoons, tidepools & reefs

The Freckled Anglerfish is a small, stocky ambush predator that can grow to about 13 cm long. It looks less like a fish and more like a lump of reef.
In Australia it turns up along the tropical north and down the east coast, with records as far south as Sydney Harbour. It has also been photographed under jetties and around rocky reefs in New South Wales.
Its range stretches right across the warm Indo-Pacific, from the Red Sea and East Africa to Hawaii and the Pacific Islands. It is one of the more widely distributed frogfishes in the world.
Few fish are as hard to spot. The Freckled Anglerfish is covered in small, warty bumps and can shift its colour to match its surroundings, appearing red, orange, yellow, green, brown or almost black.
It is a “sit and wait” hunter. Rather than chasing prey, it stays completely still and waits for a small fish or shrimp to come within striking range. One snap, and the prey is gone.
On top of its head it carries a short fishing rod, called an illicium, tipped with a tiny white lure. It waves this lure gently to draw curious prey closer.
The strike itself is one of the fastest movements in the animal world. Frogfishes can open their mouths and engulf prey in as little as six milliseconds, faster than the eye can follow.
Unlike most fish, the Freckled Anglerfish does not swim in the usual sense. It uses its thick, arm-like pectoral fins to walk and clamber across the reef. For longer moves, it can also jet itself short distances through the water.
It tends to live on coral and rocky reefs, sponge gardens and rubble patches, usually in shallow coastal water. It has been recorded from the surface down to around 20 m.
Freckled Anglerfish are typically solitary. Outside of breeding, they spend most of their time anchored to one spot, relying on camouflage rather than speed or schooling for survival.
Like other frogfishes, they are thought to breed by releasing eggs wrapped in a buoyant, ribbon-like mass of mucus. This egg raft floats near the surface until the larvae hatch.
Despite being common across the Indo-Pacific, the Freckled Anglerfish is easy to overlook in the wild. Its disguise is so effective that divers often swim past without noticing it at all.

Species Interaction

Freckled Anglerfish: A Diver's Cryptic Reef Find

Snorkelling & Diving
Research & Rare Encounters
Ecosystem Role

The Freckled Anglerfish is almost exclusively a species for divers and underwater photographers. Masters of camouflage, they sit motionless on reef, rubble and sponge, and spotting one tucked under a Sydney Harbour jetty or on a tropical reef is considered a genuine find. They are not fished, eaten or commercially harvested, and their small size and cryptic habits keep them out of the aquarium trade in any meaningful volume. Researchers studying anglerfish lure evolution and ambush predation have used related Antennarius and Antennatus species as subjects, and the Freckled Anglerfish contributes to that broader scientific picture.

Species
Sustainability

Scientific Classification

Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Order: Lophiiformes
Family: Antennariidae
Genus: Antennatus
Species: Antennatus coccineus

Conservation Status

The Freckled Anglerfish has not been assessed by the IUCN Red List, and it carries no listing under Australia’s EPBC Act. As a small, cryptic reef fish of no commercial or recreational fishing significance, it faces no known targeted harvest pressure, though its conservation status remains formally unclassified.