Luidia maculata has a variable number of arms (5-9), but eight is the most common number. Luidia maculata occurs on soft bottoms,on sand an seagrass. This sea star is carnivorous,feeds on other echinoderms and molluscs. Eight-armed sand star is nocturnal.
Sometimes mistaken for the Common sea star Archaster typicus.
Luidia maculata is a host of following ectoparasits:
Luidia maculata var. ceylonica