4 Facts About The Coffinfish

The coffinfish, scientifically known as Chaunacops coloratus, is a peculiar and intriguing deep-sea anglerfish.

1. Habitat and Distribution

The coffinfish is a deep-sea dweller, typically found at depths up to 2,500 meters (8,200 feet). It is primarily found in the Pacific, Atlantic, and Indian Oceans, with a native range that includes Australian waters.

2. Physical Features

The coffinfish is a small, globular fish with a soft, gelatinous body. Its coloration varies from pinkish to reddish-orange, with some individuals exhibiting a mottled pattern. Similar to pufferfish, the coffinfish utilizes its inflatable gills to fill its body with water, serving as a defense mechanism that makes it appear larger and more intimidating to potential predators.

Some of the most distinctive physical features of the coffinfish include:

  • A large, upward-facing mouth with sharp teeth, which enables the fish to quickly engulf its prey.
  • A modified dorsal fin spine, known as an illicium, which acts as a lure to attract prey.
  • Short, leg-like pectoral fins that allow the fish to “walk” along the ocean floor.

3. Diet and Feeding Behavior

The coffinfish is an ambush predator that relies on its illicium to attract prey. Its diet primarily consists of small fish and crustaceans. It motionless on the ocean floor, using its pectoral fins to maintain its position and blend in with its surroundings.

Then, it extends its illicium, which is tipped with a bioluminescent lure, to attract prey. The lure mimics small, glowing organisms that are common in the deep sea, enticing curious fish and crustaceans to investigate.

4. Conservation Status

The coffinfish is currently listed as least concern to be at risk of extinction, as it has a wide distribution and is not targeted by commercial fisheries.


The coffinfish is an interesting deep-sea fish that lives up to 2,500 meters deep and can be found in the Pacific, Atlantic, and Indian Oceans. It has unique physical characteristics that help it catch small fish and crustaceans. Even though it is not at risk of extinction, it is important to acknowledge its importance and appreciate the incredible diversity of life that exists in the depths of our oceans.

Featured Image by: Chin Choi Serge, CC BY 3.0, via Wikimedia Commons