Chaetaster longipes (Bruzelius, 1805) — $ Sladen 1889: 399–400; Koehler 1909: 88–89, 1914b: 274, 1921b: 37–38, fig. 27, 1924: 140–143; Mortensen 1927a: 95; Tortonese 1965: 154–155, fig. 71; Pawson 1978: 9–10; A.M. Clark & Downey 1992: 145, pl. 35, figs. A–B; $ Wirtz & Debelius 2003: 274; Garrido et al. 2004: 87–88; Wirtz 2006: 77; $ Wirtz 2009: 47–48; Micael & Costa 2010: 322; Micael et al. 2012: 6.
Type locality: ?Mediterranean Sea.
See: Tortonese (1965); A.M. Clark & Downey (1992).
Occurrence: Mediterranean Sea and East Atlantic, from Bay of Biscay (Koehler 1909) to Annobón Island in Gulf of Guinea (Nataf &Cherbonnier 1975), including the archipelagos of the Azores (Sladen 1889), Madeira (Wirtz 2006), Canaries (Garrido et al. 2004), Cape Verde (Koehler 1909), St Helena (Mortensen 1933c) and Ascension (Pawson 1978).
Depth: 30– 1,140 m (Mortensen 1927a); AZO: 30–165(?823) m (Wirtz 2009, Sladen 1889).
Habitat: hard to soft substrates (Garrido et al. 2004).
Remarks: Sladen (1889) identified Chaetaster longipes among the material dredged by H.M.S. Challenger in the Azores (sta 75: 38°38’00”N, 28°28’30”W) at a depth of 823 m. We believe that this material came from much shallower depths than reported, possibly between 91–165 m (see remarks under Astropecten hermatophilus).