First observations of Tridacna noae (Röding, 1798) (Bivalvia: Heterodonta: Cardiidae) in Christmas Island (Indian Ocean)
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We report these first in situ observations of the Noah’s giant clams, Tridacna noae from Christmas Island. On two separate occasions during diving in Christmas Island, we found five unique individuals of T. noae, which were first identified by their mantle ornamentation patterns. These preliminary observations expand geographic range westwards from South China Sea to East Indian Ocean, and are compared with known information on current T. noae geographic distribution.
KeywordsTridacna Giant clam Christmas Island Species range Tridacninae
The authors thank Professor Li-Lian Liu of the National Sun Yat-sen University, Taiwan for verifying species identification, and Park Australia Headquarters for research permits: AU-COM 2009059, AU-COM 2011096, AU-COM 2012–127, AU-COM 2012–133.
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