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Himantura tutul sp. nov. (Myliobatoidei: Dasyatidae), a new ocellated whipray from the tropical Indo-West Pacific, described from its cytochrome-oxidase I gene sequence
June 15, 2013
9:51 am
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Florent
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Borsa Philippe, Durand Jean-Dominique, Shen K.N., Arlyza I.S., Solihin D.D., Berrebi P. Himantura tutul sp. nov. (Myliobatoidei: Dasyatidae), a new ocellated whipray from the tropical Indo-West Pacific, described from its cytochrome-oxidase I gene sequence. Comptes Rendus Biologies , 2013, 336, p. 82–92. dx.doi.org/10.1016/j.crvi.2013.01.004

http://hal.archives-ouvertes.f.....Mat_v2.pdf

 

ABSTRACT
It has been previously established that the Leopard Whipray, Himantura leoparda, consists of two
genetically isolated, cryptic species, provisionally designated as ‘Cluster 1’ and ‘Cluster 4’ (Arlyza et al.,
Mol. Phylogenet. Evol. 65 (2013) [1]). Here, we show that the two cryptic species differ by the spotting
patterns on the dorsal surface of adults: Cluster-4 individuals tend to have larger ocellated spots which
also more often have a continuous contour than Cluster-1 individuals. We show that H. leoparda’s holotype
hasthe typical larger-ocellated spot pattern, designating Cluster 4 as the actual H. leoparda. The other
species (Cluster 1) is described as Himantura tutulsp. nov. on the basis of the nucleotide sequence of a 655-
base pair fragment of its cytochrome-oxidase I gene (GENBANK accession no. JX263335). Nucleotide
synapomorphies at this locus clearly distinguish Himantura tutulsp. nov. from all three other valid species
in the H. uarnak species complex, namely H. leoparda, H. uarnak, and H. undulata. Himantura tutulsp. nov.
has a wide distribution in the Indo-West Pacific, from the shores of eastern Africa to the Indo-Malay
archipelago. H. leoparda under its new definition has a similarly wide Indo-West Pacific distribution.

 

Keywords: Himantura leoparda; new species; molecular taxonomy; COI; cytochrome b

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