Common name: Leather Star

Scientific name: Leiaster coriaceus Peters, 1852

General information

The Leather Star, Leiaster coriaceus, is a species of sea star found along the Pacific coast of North America. It is known for its distinctive leathery texture and lack of the spiny armor common to many other sea star species. This species has a broad, pentagonal shape and is often a reddish-brown or orange color, with a smooth, mottled surface.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
30 cm (1′)
Care level
Moderate to easy Requires stable conditions
Diet
Omnivore Enjoys varied diet in captivity
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Echinoderms
    Echinodermata
  3. Class
    Starfish
    Asteroidea
  4. Order
    Starfish
    Valvatida
  5. Family
    Ophidiasteridae Starfish
    Ophidiasteridae
  6. Genus
    Red Knob Sea Star
    Leiaster
  7. Species
    Leather Star
    Leiaster coriaceus Peters, 1852
  8. Synonyms
    Leiaster analogus Fisher, 1913
    Ophidiaster leachi Perrier, 1878

Care

Leather Stars are not commonly kept in home aquariums due to their specialized dietary needs and large size. They are scavengers and predators, feeding on a variety of invertebrates and detritus. In captivity, they require a large tank with plenty of live rock and a stable, mature environment. They are sensitive to changes in water quality and require a well-maintained system.

Reproduction

Reproduction in Leiaster coriaceus is typically sexual, with individuals releasing sperm and eggs into the water column where fertilization occurs. They can also reproduce asexually through fragmentation, although this is less common.

Habitat

Leather Stars are found in a range of habitats from intertidal zones to depths of over 90 meters. They prefer rocky substrates and are often found in areas with strong currents. Their range extends from the Aleutian Islands in Alaska to Southern California.