Mesothuria intestinalis

• Main Authors: Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias, Ávila, Sérgio P.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Holothuroidea; Aspidochirotida; Mesothuriidae; Mesothuria; Mesothuria intestinalis; North Atlantic
• Online Access: https://doi.org/10.5281/zenodo.5583522; http://treatment.plazi.org/id/4148D21204E0FF63FF33FDE873151628

Erroneous— Mesothuria intestinalis (Ascanius, 1805) Reports for the Azores: Mesothuria intestinalis (Ascanius, 1805) — Mortensen 1927a: 381; Nobre 1938: 150–152; Deichmann 1954: 385–386; Tortonese 1965: 69–70, fig. 26; Pérez-Ruzafa et al . 1992b: 144; Micael & Costa 2010: 323; Micael et al . 2012: 4. Type locality: Norway. See: Gebruk et al . (2012: 291–300, figs. 1, 9C–D). Occurrence: Mediterranean Sea and North Atlantic, from the Caribbean waters eastwards to the Gulf of Guinea, north to Scandinavian waters, including Canaries (Gebruk et al . 2012). Depth: 20– 2,480 m, infralitoral depths tend to be restricted to higher latitudes (Gebruk et al . 2012). Habitat: muddy substrates, usually covers itself with shell fragments and other bottom material (Mortensen 1927a). Larval stage: probably direct or lecithotrophic; hermaphroditic (Mortensen 1927a). Remarks: historically, reports of M. intestinalis and M. verrilli are intermingled. For example, Hérouard (1902) considered M. verrilli as just a variety of M. intestinalis , and placed the material collected by Princesse Alice under the later. Hérouard decision led subsequent bibliography ( e.g., Mortensen 1927a; Nobre 1938) to include M . intestinalis in the Azorean fauna, disregarding the specific value of the variety. Later, Hérouard (1923) reconsidered M. verrilli as distinct species, an ‘abyssal representative’ of M. intestinalis . On reviewing M. verrilli historical material from the NE Atlantic (including the material taken by Talisman in Azorean waters), Gebruk et al . (2012) discovered a second species, M. milleri . Additionally, by studying ontological changes in M . milleri Gebruk recognized his new species in the M . verrilli descriptions by Marenzeller (1893) and Hérouard (1902, 1923). Coincidently, such age dependent variation is very close as well of what is known for M. intestinalis , leading to the possibility of both species being present among the material collected in the Azores by Princesse Alice and Hirondelle . Conversely, Gebruk et al . ...