Deima validum validum Théel, 1879

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 : 158

Deima validum validum Théel, 1879

Reports for the Azores:

Deima validum Théel, 1879 — $ Gebruk 2008: 50, 51.

Type locality: Pacific (36°10’N, 178°00’E).

See: Hansen (1975: 16–23, figs. 1, 109, pl. 9, fig. 1, pl. 13, figs. 1–2); Rogacheva et al. (2013: 595, fig. 18E).

Occurrence: cosmopolitan, in the Atlantic, Pacific and Indian Oceans; in the Caribbean deep waters to off Rio de Janeiro ( Brazil; Hansen 1975), eastwards from south of the Charlie Gibbs Fracture Zone (Mid-Atlantic Ridge; Rogacheva et al. 2013) and the Rockall Trough ( Tyler et al. 1985a) to southern African deep waters (19°13’S; Bohn 2006); the subspecies D. validum pacificum Ludwig, 1894 is restricted to the East Pacific ( Hansen 1975).

Depth: 724– 5,424 m ( Rogacheva et al. 2013); AZO: 2,954 –2,968 m ( Gebruk 2008).

Habitat: epibenthic deposit-feeder on soft sediments, from clay to Globigerina ooze (Hanse 1975, Rogacheva et al. 2013).

Larval stage: possibly direct (non-brooding) or lecithotrophic ( Tyler et al. 1985a).

Remarks: historically, the cosmopolitan Deima validum validum was reported from waters between the Azores and the Iberian continental shores (e.g., Hérouard 1902, as Deima atlanticum ). Only recently Gebruk (2008) reported this species within the archipelago’s waters, among material collected at the Azorean EEZ’s northern border (G.O. Sars, MAR–ECO cruise, sta 40/367: 42°55’N, 30°20’W, 2,954 –2,968 m).