Hymenaster anomalus Sladen, 1882

Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), Zootaxa 4639 (1), pp. 1-231 : 59

Hymenaster anomalus Sladen, 1882

Reports for the Azores:

Hymenaster anomalus Sladen, 1882 — $ Dilman 2008: 141.

Type locality: Mid-Atlantic Ridge , North of Tristan da Cunha (32°24’S, 13°05’W) .

See: Sladen (1889: 512–514, pl. 89, figs. 3–4, pl. 91, figs. 4–6); Downey (1973: 75, pl. 32: figs. A–B); A.M. Clark & Downey (1992: 315–316, figs. 49a–c, pl. 76, figs. C–D).

Occurrence: Western Atlantic, known from Straits of Florida, Gulf of Mexico and Tristan da Cunha ( Clark & Downey 1992), also from the Mid-Atlantic Ridge north of the Azores ( Dilman 2008).

Depth: 1,984 –3,050 m ( Clark & Downey 1992, Dilman 2008); AZO: 2,954 –3,050 m ( Dilman 2008).

Habitat: soft sediments (pteropod ooze; Sladen 1889).

Remarks: the West Atlantic Hymenaster anomalus was recently recorded from northern Azorean waters by Dilman (2008), expanding its geographical range to the Mid-Atlantic Ridge northwest waters.