How big is the Rust flatworm?

Rust flatworm (Pseudoceros ferrugineus) reaches 3–6 cm in length.

At what depth can you find the Rust flatworm?

Rust flatworm is found between 3–30 m deep.

What is the conservation status of the Rust flatworm?

IUCN status: Least concern (LC).

Where can you find the Rust flatworm?

Found in: Asian Pacific, Indian Ocean & Red Sea, Mediterranean.

Rust flatworm (Pseudoceros ferrugineus)

Key facts

Scientific name: Pseudoceros ferrugineus
Common name: Rust flatworm
Category: Worms
Family: Pseudocerotidae
Genus: Pseudoceros
Size: 3–6 cm
Depth: 3–30 m
IUCN status: Least concern (LC)
Danger level: Harmless
Habitats: coral-reef
Behaviours: benthic, diurnal
Ocean zones: Asian Pacific, Indian Ocean & Red Sea, Mediterranean

Description

Pseudoceros ferrugineus reaches 6 cm. Small flatworm (Pseudocerotidae) Indo-Pacific with flattened oval body rust-pink to brick-red (hence ferrugineus) covered with fine black dots, vivid blue-purple mantle edge with thin white line, anterior ear-like pseudotentacles. Lives from 3 to 30 m on Indo-Pacific coral reefs. Predator of colonial ascidians. Highly sought-after macro dive photo subject for vivid colors and contrasts, classic at nudi-spotting spots.

Photo of Rust flatworm

Frequently asked questions

How big is the Rust flatworm?: Rust flatworm (Pseudoceros ferrugineus) reaches 3–6 cm in length.
At what depth can you find the Rust flatworm?: Rust flatworm is found between 3–30 m deep.
Is the Rust flatworm dangerous to divers?: Danger level: Harmless.
What is the conservation status of the Rust flatworm?: IUCN status: Least concern (LC).
Where can you find the Rust flatworm?: Found in: Asian Pacific, Indian Ocean & Red Sea, Mediterranean.

Other species in the genus Pseudoceros

Pseudoceros dimidiatus - Divided flatworm

Sources

Taxonomy: WoRMS (AphiaID 487437)
Photos: iNaturalist (CC BY-NC)
Distribution: GBIF (taxonKey 5817927)
Conservation: IUCN Red List
Encyclopedia: Wikipedia