WoRMS source details
Smith, J. A. (1863). Notice of the Ukpam, a large species (probably new) of sting ray (Trygon, Cuv.), found in the Old Calabar River, Africa. Proceedings of the Royal Physical Society of Edinburgh. v. 2 (1859): 64-69.
486987
Smith, J. A.
1863
Notice of the Ukpam, a large species (probably new) of sting ray (Trygon, Cuv.), found in the Old Calabar River, Africa
Proceedings of the Royal Physical Society of Edinburgh
v. 2 (1859): 64-69
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