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Type: Article
Published: 2021-11-05
Page range: 493-509
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Redescription of Conniella apterygia Allen and its reassignment in the genus Cirrhilabrus Temminck and Schlegel (Teleostei: Labridae), with comments on cirrhilabrin pelvic morphology

School of Life and Environmental Sciences, University of Sydney, New South Wales 2006, Australia. 2Ichthyology, Australian Museum Research Institute, 1 William Street, Sydney, New South Wales 2010, Australia.
Department of Aquatic Zoology, Western Australian Museum, Locked Bag 49, Welshpool DC, Perth, Western Australia 6986, Australia.
Ichthyology, Australian Museum Research Institute, 1 William Street, Sydney, New South Wales 2010, Australia. Function, Evolution and Anatomy Research (FEAR) Lab, School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia.
School of Life and Environmental Sciences, University of Sydney, New South Wales 2006, Australia. 2Ichthyology, Australian Museum Research Institute, 1 William Street, Sydney, New South Wales 2010, Australia.
Marine Vertebrate Collection, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0244, USA.
Pisces coral-reef fishes taxonomy ichthyology apomorphy fairy wrasse morphology


Conniella apterygia is redescribed from re-examination of the holotype, two paratypes, and six additional specimens. The genus is closely allied to Cirrhilabrus, sharing similarities in general morphological and meristic details, but is separated from Cirrhilabrus and most other labrid fishes in lacking pelvic fins and a pelvic girdle. Recent molecular phylogenetic studies have provided strong evidence for the deep nesting of Conniella within Cirrhilabrus, contradicting its generic validity and suggesting that the loss of pelvic elements is autapomorphic. Consequently, the species is redescribed and assigned to the genus Cirrhilabrus, as Cirrhilabrus apterygia new combination. The pelvic morphologies of related cirrhilabrin labrids are discussed, and a new synapomorphy is identified for Paracheilinus.



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