Ctenodiscus crispatus ( Bruzelius, 1805 )

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 : 167-168

Erroneous— Ctenodiscus crispatus ( Bruzelius, 1805)

Reports for the Azores:

Ctenodiscus crispatus ( Bruzelius, 1805) — García-Diez et al. 2005: 47; Micael & Costa 2010: 322; Micael et al. 2012: 5.

Type locality:?Lund.

See: A.M. Clark & Downey (1992: 109–110, figs. 20a–b, d, pl. 28A–C).

Occurrence: circumpolar Arctic, in the western Atlantic south in the cold current below the Gulf Stream to Cape Hatteras (though rare south of Cape Cod, Massachusetts) and in the east to Trondheim ( Norway) and the cold area of the Faeroe Channel (A.M. Clark & Downey 1992).

Depth: 10– 1,890 m (A.M. Clark & Downey 1992).

Habitat: deposit-feeder on soft sediments (mud, sand to clay; Shick et al. 1981, A.M. Clark & Downey 1992).

Larval stage: direct development ( Shick et al. 1981).

Remarks: the report for the Azores is based on the assumption that the ‘ Asterias polaris Gray’ identified by Perrier (1896a) among the material collected by Hirondelle in the Azores is a synonym of Ctenodiscus crispatus . Analysing the related bibliography, we disagree and thus consider the record of C. crispatus from the archipelago as erroneous (see remarks under Asterias rubens and Leptasterias polaris ).