Manta rays are large rays belonging to the genus Manta. The larger species, M. birostris, reaches 7 m (23 ft 0 in) in width while the smaller, M. alfredi, reaches 5.5 m (18 ft 1 in).Both have triangular pectoral fins, horn – shaped cephalic fins and large, forward-facing mouths.Mantas are found in warm temperate, subtropical and tropical waters. Both species are pelagic; M. birostris migrates across open oceans, singly or in groups, while M. alfredi tends to be resident and coastal. They …

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The species can be distinguished from other species of Halgerda by the large, bright orange-tipped, conical tubercles scattered over the dorsum, but which are not interconnected by ridges. Below each orange tip the tubercles have a band of opaque white. There are many smaller orange tubercles scattered amongst the larger tubercles. The rhinophore club is translucent yellow and there is a black line extending down the whole length of both the rhinophore club and stalk on the posterior midline. The anterior side of the club also has black pigmentation. The gill has black spots on the anterior sides of the four branchial leaves. The foot has an orange margin.


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