paxillosida

Astropecten jonstoni

…is a species of Astropectinid sea star which is endemic to the Mediterranean Sea, where it is known to occur on sandy seabeds at low depths between 1 and 12 meters. Unlike other members of the genus Astropecten, A. jonstoni is mainly active during the day where it will feed on a wide range of molluscs and other marine invertebrates. 

Classification

Animalia-Echinodermata-Asteroidea-Paxillosida-Astropectinidae-Astropecten-A. jonstoni

Image: Rpillon

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Astropecten bispinosus

…a species of Astropectinid sea star that is native to the Mediterranean sea, where it primarily occupies mobile seabeds (sandy, buddy or gravel beds near meadows of Cymodocea nodosa) where it will remain buried under sediment during the day. During the late afternoon and night A. bispinosus is active and will feed mainly on molluscs which it catches with its arm and takes to its mouth, the prey item is then trapped by the long spines around the mouth cavity. 

Classification

Animalia-Echinodermata-Asteroidea-Paxillosida-Astropectinidae-Astropecten-A. bispinosus

Image(s): Rpillon

Southern Sand Star (Luidia australiae)

…a species of Luidiid sea star, which occurs in the waters around southern Australia and New Zealand where it occurs on reefs, seagrass meadows, and sands at depths of ~110 m.Southern sand stars are opportunist predators and will conceal themselves in sand and feed on a range of passing invertebrates. 

Classification

Animalia-Echinodermata-Asterozoa-Asteroidea-Paxillosida-Luidiidae-Luidia-L. australiae

Image: Richard Ling