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Dentex carpenteri, a new species of deepwater seabream from Western Australia (Pisces: Sparidae)

Iwatsuki, Yukio, Newman, Stephen J. and Russell, Barry (2015). Dentex carpenteri, a new species of deepwater seabream from Western Australia (Pisces: Sparidae). Zootaxa,3957(1):109-119.

Document type: Journal Article
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IRMA ID 83393865xPUB235
Title Dentex carpenteri, a new species of deepwater seabream from Western Australia (Pisces: Sparidae)
Author Iwatsuki, Yukio
Newman, Stephen J.
Russell, Barry
Journal Name Zootaxa
Publication Date 2015
Volume Number 3957
Issue Number 1
ISSN 1175-5326   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-84938401704
Start Page 109
End Page 119
Total Pages 11
Place of Publication New Zealand
Publisher Magnolia Press
HERDC Category C1 - Journal Article (DIISR)
Abstract A new species of sparid fish, Dentex carpenteri, is described from nine type specimens collected off Ningaloo Reef near Exmouth, Western Australia. Four valid species of Dentex are currently known in the western Pacific, Dentex abei and D. hypselosomus in the Northern Hemisphere, and D. fourmanoiri and D. spariformis in the Southern Hemisphere. These four species comprise the “Dentex hypselosomus complex”. Dentex carpenteri n. sp. is most similar to D. spariformis in overall body form, but differs from D. spariformis in having the posterior margin of the upper jaw not reaching or reaching slightly beyond a vertical at the anterior margin of eye; often with the greater part from the snout to the second infraorbital yellowish; deeper suborbital (9.7–10.9% SL); and a considerably deeper body (vs. posterior margin of upper jaw reaching clearly beyond anterior margin of eye; slight yellow region on snout; suborbital depth shallow (7.6–9.6% SL); and a less deep body in D. spariformis). The mitochondrial 16S ribosomal RNA genes (16S rRNA, 545 bp) of the above five species were analyzed using the Atlantic congener, Dentex macrophthalmus as an out-group, the results clearly indicating that D. carpenteri n. sp. is a valid and distinct species. A key to the “Dentex hypselosomus complex” is provided. The distributional information available for the five species from the western Pacific, including western Australia and the nearby eastern Indian Ocean, are discussed, with the species considered to be allopatric.
Keywords taxonomy
Sparidae
Dentex carpenteri
New species
Western Australia
southeastern Indian Ocean
DOI http://dx.doi.org/10.11646/zootaxa.3957.1.9   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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