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Cowtail Stingray Video Stock Footage
The pectoral fin disk of the cowtail stingray is very thick, with almost straight anterior margins and rounded apices, and measuring 1.1-1.3 times as long as wide. The snout is broadly rounded and blunt. The eyes are very small and widely spaced. The mouth is narrow, with 20 rows of distinctive hexagonal, high-crowned teeth in each jaw and five papillae on the mouth floor. The tail is broad-based, with a filamentous tip and a single venomous spine located well backwards of the pelvic fins. There is no upper tail fold the high ventral tail fold measures 2-3 times the height of the tail but does not reach the tip. The disk surface is covered by a broad band of fine dermal denticles extending from near the tip of the snout to the upper surface of the tail, excluding the extreme margins of the disk. Newborns are entirely smooth but develop denticles quickly after birth. Juveniles have four circular tubercles at the center of the disk, which often become indistinct in adults. The coloration is a uniform grayish brown to black above and mostly white below. The tail fold and tip are black. This species may reach 3 meters (9.8 feet) long and 1.8 meters (5.9 feet) across, and 250 kg (550 lb) in weight.
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