WoRMS taxon details

Pseudoctomeris Poltarukha, 1996

534821  (urn:lsid:marinespecies.org:taxname:534821)



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Poltarukha, O. P. (1996). Composition, phylogeny and position in system of the subfamily Notochthamalinae (Crustacea, Chthamalidae). <em>Zool. Zh.</em> 75: 985–99. [details]   
WoRMS (2024). Pseudoctomeris Poltarukha, 1996. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=534821 on 2024-03-04
2010-10-22 06:14:53Z
2013-07-02 10:27:32Z
2013-09-04 20:53:37Z
2017-10-12 14:30:12Z

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License

original description Poltarukha, O. P. (1996). Composition, phylogeny and position in system of the subfamily Notochthamalinae (Crustacea, Chthamalidae). <em>Zool. Zh.</em> 75: 985–99. [details]   

taxonomy source Chan, B. K. K.; Dreyer, N.; Gale, A. S.; Glenner, H.; Ewers-Saucedo, C.; Pérez-Losada, M.; Kolbasov, G. A.; Crandall, K. A.; Høeg, J. T. (2021). The evolutionary diversity of barnacles, with an updated classification of fossil and living forms. <em>Zoological Journal of the Linnean Society.</em> , available online at https://doi.org/10.1093/zoolinnean/zlaa160 [details]  OpenAccess publication 

basis of record Chan, B. K. K.; Corbari, L.; Rodriguez Moreno, P. A.; Tsang, L. M. (2017). Molecular phylogeny of the lower acorn barnacle families (Bathylasmatidae, Chionelasmatidae, Pachylasmatidae and Waikalasmatidae) (Cirripedia: Balanomorpha) with evidence for revisions in family classification. <em>Zoological Journal of the Linnean Society.</em> 180(3): 542-555., available online at https://doi.org/10.1093/zoolinnean/zlw005 [details]  Available for editors  PDF available [request] 
From editor or global species database
Additional information Pseudoctomeris sulcata was grouped with Pachylasma in the molecular phylogeny tree in Chan et al. (2017). P. sulcata was first identified as Octomeris sulcata by Nilsson-Cantell (1932) and classified in the Chthamalidae. However, Hiro (1939) reexamined Pseudoctomeris in detail and revealed that P. sulcata shared morphological similarities with Octomeris and Pachylasma. P. sulcata was similar to Pachylamsa because it had Pachylasma-type opercular plates and a compound rostrum, in which the rostrum was joined with rostral laterals by a straight suture. Furthermore, P. sulcata has caudal appendages, whereas Octomeris lacked caudal appendages. Hiro (1939) proposed that P. sulcata should be identified as Pachylasma. However, he believed that Pachylasma is an exclusive deep-sea taxon, whereas Pseudoctomeris is an intertidal inhabitant. He later recognised P. sulcata as a member of Octomeris. Poltarukha (1996), based on the distinct differences between P. sulcata and Octomeris, erected a new genus Pseudoctomeris to accommodate P. sulcata and relocated the genus under the subfamily Euraphinae in Chthamalidae. At present, the molecular and morphological evidence in Chan et al. (2017) suggest that Pseudoctomeris represents only intertidal species in Pachylasmatidae and has eight-plated shells. Written by Benny Chan. [details]