Abstract
THE isurid shark, Isurus oxyrinchus Rafinesque, 1810, although most closely related to the Indo-Pacific I. glaucus Müller and Henle, 1841, is apparently constantly and clearly differentiated in certain features, notably the height of the dorsal fin and the relative length of the head from snout tip to pectoral origin. Primarily of tropical and subtropical oceanic waters, this species has hitherto been known from a wide range in the Atlantic both east and west. It is extremely virile and vigorous, and is a game fish of repute much sought after by anglers.
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SMITH, J. The Shark, Isurus oxyrinchus, in South African Waters. Nature 171, 977 (1953). https://doi.org/10.1038/171977a0
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DOI: https://doi.org/10.1038/171977a0
