ECHINODERMATA : SPINULOSIDA : EchinasteridaeSTARFISH, SEA URCHINS, ETC.

Echinaster sepositus Retzius, 1805


Echinaster sepositus

Description: A medium-sized, bright orange-red starfish with five regular arms and a small disc. The surface of the body is soapy in texture, with regular indentations from which groups of dark red papulae can be extended. The arms taper less than those of Henricia oculata. Up to 20cm. in diameter.

Habitat: A common starfish on rocky substrata in both sheltered and moderately exposed conditions.

Distribution: Only found on the French side of the English Channel. Common in the Bay of Morlaix, Brittany, and south to the Mediterranean, where it is one of the commonest starfish.

Similar Species: Similar in overall shape to Henricia oculata, but the soft, soapy surface and bright orange coloration are very distinctive.

Key Identification Features:

Distribution Map from BioMar data for Ireland - Google Earth map:  download this placemark (not got Google Earth installed?)

Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.



 Picton, B.E. & Morrow, C.C., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland
http://www.habitas.org.uk/marinelife/species.asp?item=ZB1600

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