"Marthasterias" is a genus of starfish in the family Asteriidae. It is monotypic and the only species in the genus is "Marthasterias glacialis", commonly known as the spiny starfish. It is native to the eastern Atlantic Ocean.
Similar species: Forcipulatida
By Patomarazul
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Uploaded Dec 18, 2022. Captured Nov 10, 2022 16:11 in H3JW+VM Santa Maria, Cape Verde.