Flattened with five relatively straight sided arms tapering to acute points giving a distinct star shape. The arms are fringed with a comb-like array of sharp spines along the length of their margin. Superomarginal plate spines relatively small; inferomarginal spines subequal, in clusters of three to five. Aboral surface pale pink.
Temperate inshore and continental shelf areas, from Crowdy Head, NSW, south to Tasmania and west to City Beach, WA. Depth range 9-280 m.
Australian Museum registration database records for the Sydney region:
Port Jackson; 37 km east of Port Jackson; off Coogee; Malabar; east of Malabar. 1.5km off Botany Bay; east of Cronulla; Jibbon, near Conulla; Port Hacking (Gunnamatta Bay; Shiprock near Caringbah). Depth range 42-366 m.
Taxonomic information - synonyms and type material:
Astropecten pectinatus Sladen, 1883: 251.
Type data: syntypes BMNH 18126.96.36.199-4.
Type locality: Port Jackson, NSW, Bass Strait, Port Phillip, VIC, and South Australia.
Astropecten schayeri Döderlein, 1917: 46, 60, pls 1(1), 7(1-1c).
Type data: holotype ZMB 802.
Type locality: Tasmania.
Astropecten syntomus Clark, 1928: 372, fig. 110.
Type data: holotype SAMA K45.
Type locality: not stated, presumably SA.
Links for further information:
Clark (1946) (also as Astropecten schayeri, Astropecten syntomus); John (1948) (as Astropecten pectinatus); Shepherd (1968) (as Astropecten pectinatus); Edgar (1997).