Ophiactis savignyi (Müller & Troschel, 1842)
Savigny's brittle star
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Family:  Ophiactidae ()
Max. size:  2 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 550 m
Distribution:  Cosmopolitan.
Diagnosis:   
Biology:  Minimum depth from Ref. 83942. It is found in intertidal and subtidal areas, particularly on rocky and muddy substrates (Ref. 83942). Inhabits all reef habitats; often lives in sponges (Ref. 415). It occurs on mangrove swamp (Ref. 111335), dead corals with algae (Ref. 800), and seagrass Halimeda (Ref. 86568). Suspension feeder (Ref. 116259). In crevices, part of fouling communities found in mariculture zones (Ref. 127121).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:  Known from offshore atolls including Turneffe Islands, Lighthouse, Glover's Reef atolls, Belize Barrier Reef in the vicinity of Carrie Bow Cay (Ref. 86570, 86569), Elbow Cay and westernmost of the Bird Cays (Ref. 86570). The mode of reproduction is asexual fissiparity. Its disc diameter vary depending on the substrate: Halimeda, 0.14 cm, 142 specimens; Porites and Madracis, 0.13 cm, 29 specimens; Agaricia, 0.13 cm, 29 specimens; Rubble, 0.14 cm, 2 specimens (Ref. 86568). C: Refs. 86570, 86568, 83942, 87242.

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