Primnoidae (Octocorallia: Calcaxonia) from the Emperor Seamounts, with Notes on<i>Callogorgia elegans</i>(Gray, 1870)

Cairns, Stephen D.; Stone, Robert P.; Moon, Hye-Won; Lee, Jong Hee

doi:10.2984/72.1.8

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…and Callogorgia species (Cairns, 2007;Cairns et al, 2018). This suggests that some euryalids have adapted (partly or entirely) to a life perched on coral branches.…”

Section: Discussionmentioning

confidence: 96%

Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax

COOK,

OKANISHI,

PANTE

2023

Zootaxa

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The deep-sea octocoral Pseudochrysogorgia bellona was recently described from specimens sampled on the Chesterfield Plateau, off New Caledonia. It is morphologically and genetically similar to the con-familial Metallogorgia melanotrichos, which is known to closely associate with a species of brittle star, Ophiocreas oedipus. These latter two species have never been observed separately and are thought to grow synchronously. The morphological similarity between M. melanotrichos and P. bellona makes the latter another possible host for ophiuroids. However, no brittle star was associated with P. bellona specimens from the type collection. In 2017, 130 P. bellona colonies were sampled near the type locality, and 98% were associated with Asteroschema ajax, a species closely related to O. oedipus. Mitochondrial DNA analysis confirmed the morphological identifications of both P. bellona and A. ajax. Uni- and multivariate statistical analyses were used to characterize the morphological space of both species to test if larger ophiuroids are associated with larger corals. Two variables were measured to estimate the size of the coral (total height and diameter of the skeletal axis at its base) and 9 variables were used to characterize the brittle star (disc and arm morphology). Morphological variables representing the size for both species were significantly correlated (Spearman rank correlation coefficient: 50%, p < 0.001), suggesting that larger ophiuroids indeed associate with larger corals. This is one of the rare studies that allowed comparison of growth in associated deep-sea invertebrates.

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“…and Callogorgia species (Cairns, 2007;Cairns et al, 2018). This suggests that some euryalids have adapted (partly or entirely) to a life perched on coral branches.…”

Section: Discussionmentioning

confidence: 96%

Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax

COOK,

OKANISHI,

PANTE

2023

Zootaxa

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“…Callogorgia consists of 27 valid species (Cairns et al 2018), four of which occur in the northwestern Gulf of Mexico (Cairns and Bayer 2002;Etnoyer and Cairns 2017): C. americana, C. delta, C. gracilis, and C. linguimaris. C. gracilis is the only one reported shallower than 180 m (Quattrini et al 2013;Etnoyer and Cairns 2017) and is distinguishable by its stiff, straight main stem, cylindrical (vs. clavate) polyps, number of sclerites, and unique mitochondrial molecular barcode (cox1þigr1þmtMutS) (Cairns and Bayer 2002;Quattrini et al 2013).…”

mentioning

confidence: 99%

Complete mitochondrial genome of Callogorgia cf. gracilis (Octocorallia: Calcaxonia: Primnoidae)

Easton

Hicks

2019

Mitochondrial DNA Part B

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We report the first complete mitochondrial genome of Callogorgia. Callogorgia cf. gracilis isolate DFH32_518B was collected by a remotely operated vehicle at 98 m on McGrail Bank (27.9840725 N, 92.604242 W). The complete mitogenome is 18,937 bp (27.8% A, 18.3% C, 19.8% G, and 34.1% T) and has the ancestral octocoral gene order for its 14 protein-coding genes, two rRNA genes, and one tRNA gene. It is sister to and 96.6% similar (uncorrected) to Narella hawaiiensis, the only other complete mitogenome reported for Primnoidae. The cox1 þ igr1 þ mtMutS region differs by two base pairs (0.12%) from the only reported C. gracilis haplotype.

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Molecular and morphological data reveal three new species of Thouarella Gray, 1870 (Anthozoa: Octocorallia: Primnoidae) from the Southern Ocean

2020

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Primnoidae (Octocorallia: Calcaxonia) from the Emperor Seamounts, with Notes onCallogorgia elegans(Gray, 1870)

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 7 publications

References 16 publications

Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax

Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax

Complete mitochondrial genome of Callogorgia cf. gracilis (Octocorallia: Calcaxonia: Primnoidae)

Molecular and morphological data reveal three new species of Thouarella Gray, 1870 (Anthozoa: Octocorallia: Primnoidae) from the Southern Ocean

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