Open Access Open Access  Restricted Access Subscription or Fee Access


DOI: http://dx.doi.org/10.11646/zootaxa.4132.1.8

Misidentification of Carcharhinus galapagensis (Snodgrass & Heller, 1905) in the Southwest Pacific Ocean

CLINTON A. J. DUFFY

Abstract


Although primarily a coral reef species the grey reef shark Carcharhinus amblyrhynchos has been recorded from a number of subtropical oceanic islands and reefs in the Southwest Pacific Ocean. Examination of all nominal C. amblyrhynchos voucher material collected from Lord Howe Island, Elizabeth and Middleton Reefs and Norfolk Island resulted in the re-identification of these specimens as Galapagos sharks, C. galapagensis. As C. amblyrhynchos superficially resembles C. galapagensis visual records of C. amblyrhynchos from Elizabeth and Middleton Reefs and the Kermadec Islands cannot be substantiated without voucher material. Carcharhinus amblyrhynchos therefore appears to be confined to waters north of about 25o S in the Southwest Pacific. Precaudal vertebral counts should be used to confirm the identification of nominal C. amblyrhynchos specimens that have an interdorsal ridge.

 


Keywords


Pisces, Carcharhinus galapagensis, C. amblyrhynchos, morphology, juveniles, distribution, Tasman Sea, New Zealand

Full Text:

PDF/A (1.57 MB)

Refbacks

  • There are currently no refbacks.


 
ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand
A founding journal of Biotaxa