Parachrysogorgia Xu & Zhan & Xu 2023, gen. nov.
Genus Parachrysogorgia gen. nov. urn:lsid:zoobank.org:act: CCE87C37-7B4D-4670-86A0-5DB963FD0F8D Diagnosis. Colony branching sympodial, arising from a single ascending spiral (counterclockwise, bottlebrush-shaped colony), two or more fans emerging from a short main stem (bi- or multi-flabellate colon...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2023
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| Online Access: | https://zenodo.org/record/8211621 https://doi.org/10.5281/zenodo.8211621 |
| Summary: | Genus Parachrysogorgia gen. nov. urn:lsid:zoobank.org:act: CCE87C37-7B4D-4670-86A0-5DB963FD0F8D Diagnosis. Colony branching sympodial, arising from a single ascending spiral (counterclockwise, bottlebrush-shaped colony), two or more fans emerging from a short main stem (bi- or multi-flabellate colony). Axis with a metallic shine. Branch subdivided dichotomously or with branchlets forming a sympodium. Polyps relatively large and stout, with a bare, sclerite-free area at the base of each tentacle and eight distinct projections (acuminate or warty) beneath tentacles. Sclerites in the form of scales in polyp body wall, spindles/rods, and/or scales in tentacles. Type species. Parachrysogorgia chryseis (Bayer & Stefani, 1988) comb. nov. (basionym: Chrysogorgia chryseis Bayer & Stefani, 1988). Distribution. Currently known only from the Pacific and North Atlantic Oceans, 329–1937 m. Species assigned. Thirteen species of Chrysogorgia are transferred to Parachrysogorgia. These are P. admete (Bayer & Stefani, 1988) comb. nov., P. antarctica (Cairns, 2002) comb. nov., P. binata (Xu, Li, Zhan & Xu, 2019) comb. nov., P. bracteata (Bayer & Stefani, 1988) comb. nov., P. calypso (Bayer & Stefani, 1988) comb. nov., P. chryseis (Bayer & Stefani, 1988) comb. nov., P. electra (Bayer & Stefani, 1988) comb. nov., P. expansa (Wright & Studer, 1889) comb. nov., P. octagonos (Versluys, 1902) comb. nov., P. scintillans (Bayer & Stefani, 1988) comb. nov., P. squamata (Verrill, 1883) comb. nov., P. stellata (Nutting, 1908) comb. nov., and P. versluysi (Kinoshita, 1913) comb. nov. Other species (e.g., C. intermedia Versluys, 1902, C. curvata Versluys, 1902) with incomplete descriptions need to be confirmed based on detail morphological examination as well as phylogenetic analyses. Remarks. Untiedt et al. (2021) recognized nine distinct morphological groups of Chrysogorgia s.l. and hypothesized that each likely represents a distinct genus by using a concatenated UCE and exon loci dataset (Table 4). Our ... |
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