Jump to content

Choriaster

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Anna Frodesiak (talk | contribs) at 22:55, 25 April 2016 (+==External links== {{Commons category|position=left|Choriaster granulatus}}). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Choriaster granulatus
Choriaster granulatus in Occidental Mindoro, Philippines
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Choriaster

Lütken, 1869 [1]
Species:
C. granulatus
Binomial name
Choriaster granulatus
Lütken, 1869

Choriaster granulatus, commonly known as the granulated sea star, cushion seastar,[2]and doughboy star,[3] is a species of starfish.[4] It is the only species in the genus Choriaster.[1]

Description

Choriaster granulatus is a large seastar, and is easily identified by its five distinctive large, short, thick conical arms. [2] It is usually pale pink in colour, has small, brown papillae in clusters located in the central part of its body. [2] This species grows to a maximum radius of approximately 27 cm.[3]

Location

This species is found in numerous tropical waters, including:[3]

Habitat

Choriaster granulatus in Madagascar
Oreaster granulatus

Choriaster granulatus lives in shallow waters at depths of up to 40 metres,[5] and is found on rubble slopes, coral reefs,[3] in the reef front, back reef, the external reef, and frequently in locations with rubble and detritus.[2]

Behaviour and diet

This starfish feed on algae, detritus, and dead animals.[2] One of its predators is the sea snail Triton's trumpet (Charonia tritonis).[3] It also eats various small invertebrates and coral polyps.[5]

References

  1. ^ a b C.L. Mah (2010). "Asteroidea taxon details for Choriaster Lütken, 1869". World Asteroidea Database. Retrieved June 29, 2011.
  2. ^ a b c d e Choriaster granulatus, Cushion star
  3. ^ a b c d e Marine Fish Picture Gallery - Granulated Seastar picture
  4. ^ WoRMS - World Register of Marine Species - Choriaster granulatus Lütken, 1869
  5. ^ a b c Choriaster granulatus, granular sea star