Aipysurus mosaicus, a new species of egg-eating sea snake (Elapidae: Hydrophiinae), with a redescription of Aipysurus eydouxii (Gray, 1849)

Sanders, Kate L., Rasmussen, Arne R., Elmberg, Johan, Mumpuni, Sancoyo, Guinea, Michael, Blias, Peter, Lee, Michael S. Y. and Fry, Bryan G. (2012) Aipysurus mosaicus, a new species of egg-eating sea snake (Elapidae: Hydrophiinae), with a redescription of Aipysurus eydouxii (Gray, 1849). Zootaxa, 3431: 1-18.

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Author Sanders, Kate L.
Rasmussen, Arne R.
Elmberg, Johan
Mumpuni, Sancoyo
Guinea, Michael
Blias, Peter
Lee, Michael S. Y.
Fry, Bryan G.
Title Aipysurus mosaicus, a new species of egg-eating sea snake (Elapidae: Hydrophiinae), with a redescription of Aipysurus eydouxii (Gray, 1849)
Formatted title Aipysurus mosaicus, a new species of egg-eating sea snake (Elapidae: Hydrophiinae), with a redescription of Aipysurus eydouxii (Gray, 1849)
Journal name Zootaxa   Check publisher's open access policy
ISSN 1175-5326
1175-5334
Publication date 2012-08
Sub-type Article (original research)
Issue 3431
Start page 1
End page 18
Total pages 18
Place of publication Auckland, New Zealand
Publisher Magnolia Press
Collection year 2013
Language eng
Formatted abstract We describe a new species of egg-eating sea snake, Aipysurus mosaicus sp. nov., from northern Australia and southern New Guinea. This species was previously considered to be an allopatric population of A. eydouxii, which occurs throughout the Sunda Shelf and in New Guinea. Molecular analyses reveal these two species to be sister lineages with fixed nucleotide substitutions at three independent mitochondrial and nuclear loci, and a deep phylogenetic divergence exceeding that of all other sampled species pairs in Aipysurus. Aipysurus mosaicus sp. nov. is also distinguished from A. eydouxii by morphological characters relating to scalation (e.g. number of ventral scales), colour pattern (e.g. number and shape of transverse body bands), internal soft anatomy (e.g. position of heart in relation to ventral scales), and skeletal morphology (e.g. shape of nasal and caudal neural spines). Additional sampling is needed to clarify the extent of geographic contact between A. eydouxii and the new species in New Guinea where they appear to be sympatric. It is likely that the boundaries between these taxa will be mirrored in other coastal sea snakes with ranges spanning the deep waters of the Timor Trench; discovery of such cryptic species will have important implications for conservation of this highly diverse but relatively poorly studied group of marine vertebrates.
Keyword Anonymous nuclear
Hydrophiinae
Indo-Australia
Marine
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Biological Sciences Publications
 
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Created: Wed, 31 Oct 2012, 11:29:30 EST by Gail Walter on behalf of School of Biological Sciences