Nomenclature
original description
Gibson, R. (1990). The macrobenthic nemertean fauna of Hong Kong. <em>In: Morton, B. (ed.), Proceedings of the Second International Marine Biological Workshop: The Marine Flora and Fauna of Hong Kong and Southern China, Hong Kong, 1986. Volume 1. Introduction and taxonomy. Hong Kong University Press, Hong Kong.</em> Pp. 33–212., available online at http://books.google.com/books?hl=en&lr=&id=ldnrQX-gqJIC&oi=fnd&pg=PA33&dq=Gibson+macrobenthic+nemertean+fauna&ots=-l-nwXbB9M&sig=SWPB0esBpQ-81i34AS58rwFQvRs#v=onepage&q=Gibson%20macrobenthic%20nemertean%20fauna&f=false [details] Available for editors 
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original description
(of Procephalothrix arenarius Gibson, 1990) Gibson, R. (1990). The macrobenthic nemertean fauna of the Albany region, Western Australia. <em>In: Wells, F. E.; Walker, D. I.; Kirkman, H.; Lethbridge, R. (eds), Proceedings of the Third International Marine Biological Workshop. The Mmarine Flora and Fauna of Albany, Western Australia. Volume 1. Western Australian Museum, Perth.</em> Pp. 89–194. [details] Available for editors [request]
new combination reference
Sundberg, P.; Gibson, R.; Olsson, U. (2003). Phylogenetic analysis of a group of palaeonemerteans (Nemertea) including two new species from Queensland and the Great Barrier Reef, Australia. <em>Zoologica Scripta.</em> 32(3): 279–296., available online at http://onlinelibrary.wiley.com/doi/10.1046/j.1463-6409.2002.00032.x/abstract
note:
"This new definition of Cephalothrix, including previous Procephalothrix species, will make Procephalothrix arenarius Gibson, 1990 and Cephalothrix arenaria Hylbom, 1957 homonyms, the latter name havi...
"This new definition of Cephalothrix, including previous Procephalothrix species, will make Procephalothrix arenarius Gibson, 1990 and Cephalothrix arenaria Hylbom, 1957 homonyms, the latter name having priority. We therefore rename Procephalothrix arenarius as Cephalothrix hongkongiensis (replacement name)."
[details] Available for editors [request]
Other
additional source
Kajihara H.; Sun S.-C.; Chernyshev A.V.; Chen H.-X.; Ito K.; Asakawa M.; Maslakova S. A.; Norenburg J. L.; Strand M.; Sundberg P. & Iwata F. (2013). Taxonomic identity of a tetrodotoxin-accumulating ribbon-worm <i>Cephalothrix simula</i> (Nemertea: Palaeonemertea): a species artificially introduced from the Pacific to Europe. <em>Zoological Science.</em> 30(11): 985–997., available online at https://doi.org/10.2108/zsj.30.985 [details] Available for editors [request]
From editor or global species database
Taxonomic remark Kajihara et al. (2013) demonstrate that Cephalothrix hongkongiensis Gibson 1990 and Cephalothrix simula (Iwata, 1952) are morphologically indistinguishable, making DNA comparison the only reliable way to identify these species.
Cephalothrix hongkongiensis Sundberg, Gibson and Olsson, 2003 is a replacement name for Procephalothrix arenaria Gibson, 1990. The original spelling (Procephalothrix arenarius)
is incorrect with respect to gender agreement. A replacement name is introduced to avoid secondary homonymy with Cephalothrix arenaria Hylbom, 1957. [details]
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