Description of a new and widely distributed species of Bathypathes (Cnidaria: Anthozoa: Antipatharia: Schizopathidae) previously misidentified as Bathypathes alternata Brook, 1889

PeerJ

article

Tina N. Molodtsova¹  Dennis M. Opresko²  Daniel Wagner³ 

[1] P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences;U.S. National Museum of Natural History, Smithsonian Institution;Conservation International, Center for Oceans

关键词: New species;    Antipatharia;    Seamount fauna;    Deep-sea corals;    Geographic distribution;    Deep-sea mineral resources;    Lower bathyal;    Abyssal;   

DOI  :  10.7717/peerj.12638

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

For many years an undescribed species of the genus Bathypathes has been misidentified as Bathypathes alternata Brook, 1889 (a species currently re-assigned to the genus Alternatipathes). This new species is rather common at mid- and lower bathyal depths of the Pacific, Atlantic and Indian oceans, often in areas with high concentrations of commercially valuable cobalt-rich ferromanganese crusts, where it was observed in underwater photo and video transects to occur in high densities. Under the name B. alternata this species is recorded in several inventories and databases. There is an urgent need for a formal description of this misidentified and widely distributed species to avoid further confusion. The new species is superficially similar to A. alternata in having a monopodial corallum and simple, bilateral and alternately arranged pinnules. However, it differs from the former in that it has an upright corallum with a straight pinnulated part (vs. a horizontally bent pinnulated part), pinnules of uniform length and density (vs. decreasing regularly distally), and a constant distal angle formed by the pinnules and the stem along different parts of the corallum (vs. a decreasing distal angle near the top). The new species can therefore be easily distinguished from A. alternata in underwater imagery. We formally describe this new species in the genus Bathypathes and assign it the new name B. pseudoalternata5 provinces), including the newly described Bathypathes pseudoalternata. Members of the family Schizopathidae, to which the new species belongs, represent the majority of the lower bathyal (50.54%) and abyssal (82.35%) species.

【 授权许可】

CC BY