Ophiactis nidarosiensis ? Mortensen 1920

Ophiactis nidarosiensis ? Mortensen, 1920 Reports for the Azores: non Ophiactis hirta Lyman, 1879 —? $ Koehler 1909: 171 [misidentification]. Type locality: Trondhjemfjord, Norway. See: Mortensen (1920: 60–63, fig. 5; 1933b: 346–347, fig. 58a). Occurrence: recorded from the Scandinavia, Iceland, sou...

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Bibliographic Details
Main Authors: Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias, Ávila, Sérgio P.
Format: Other/Unknown Material
Language:unknown
Published: 2019
Subjects:
Biodiversity
Taxonomy
Animalia
Echinodermata
Ophiuroidea
Ophiurida
Ophiactidae
Ophiactis
Ophiactis nidarosiensis
Iceland
Online Access:https://zenodo.org/record/5583060
https://doi.org/10.5281/zenodo.5583060
Description
Summary:Ophiactis nidarosiensis ? Mortensen, 1920 Reports for the Azores: non Ophiactis hirta Lyman, 1879 —? $ Koehler 1909: 171 [misidentification]. Type locality: Trondhjemfjord, Norway. See: Mortensen (1920: 60–63, fig. 5; 1933b: 346–347, fig. 58a). Occurrence: recorded from the Scandinavia, Iceland, southern Africa, off Gough Island (Tristan da Cunha, S Atlantic) and?Azores (Mortensen 1920, 1933a, 1936). Depth: 102–560 m (Mortensen 1933a, 1936); AZO:? 1,095 m (Koehler 1909). Habitat: ?volcanic sand (AZO; Koehler 1909). Larval stage: unknown; also reproduces asexually through fission (Mortensen 1920). Remarks: Koehler (1909) described a small six-armed specimen collected by Princesse Alice in Azorean waters (sta 1344: 38°45’30”N, 28°7’45”W, 1,095 m) as distinct from the type material of Ophiactis hirta collected by Lyman (1879, H.M.S. Challenger) in the Pacific, but not enough to consider it a different species. H.L. Clark (1918) suggested this specimen might represent a juvenile stage of Ophiactis abyssicola, a cosmopolitan deep-water species. Mortensen (1920, 1927) believed this specimen was actually O. nidarosiensis. Unfortunately, the specimen collected by Princesse Alice was lost (Mortensen 1920), and until new material is retrieved, the presence of either species in the archipelago should be considered as doubtful. Published as part of Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), pp. 1-231 in Zootaxa 4639 (1) on page 25, DOI:10.11646/zootaxa.4639.1, http://zenodo.org/record/3342161

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