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Wed, 06 May, 2026
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? Ganges shark
Conservation status: Critical
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| Scientific classification |
| Kingdom: |
Animalia
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| Phylum: |
Chordata
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| Class: |
Chondrichthyes
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| Order: |
Carcharhiniformes
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| Family: |
Carcharhinidae
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| Genus: |
Glyphis
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| Species: |
G. gangeticus
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Glyphis gangeticus
( Müller & Henle, 1839) |
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The Ganges shark (Glyphis gangeticus) is a rare species of fresh water shark that dwells in the Ganges River.
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Contents
Appearance
Distribution
Biology
Endangerment
Danger to humans
Appearance - Contents
In its external appearance, G. Gangeticus is a typical requiem shark. It is stocky, with a broadly rounded snout and small eyes. The first dorsal fin is over the last third of the pectoral fins, with a free rear tip that is well in front of the pelvic fins. The second dorsal fin is much smaller than the first, but is still relatively large. The anal fin is slightly smaller than the second dorsal fin. The pectoral fins are broad and falcate. A longitudinal upper precaudal pit is present, but the interdorsal ridge is absent.The shark tends to have a uniform gray to brownish coloration, with no discernible pattern or markings.
Distribution - Contents
The Ganges shark, as its name suggests, is largely restricted to the rivers of the Indo-Western Pacific, particularly the Hooghly River of West Bengal, India. Individuals have also been sighted in waters in the vicinity of Karachi, Pakistan.
Biology - Contents
The shark, though poorly documented, is known to inhabit only freshwater, inshore marine and estuarine systems. Its feeding habits are unknown. Its maximum size is probably in the area of 204 cm. It is probably viviparous, measuring 55 cm to 60 cm at birth.A related species is the Speartooth shark (Glyphis glyphis), although its distribution is different.
Endangerment - Contents
The Ganges shark is believed to be seriously endangered.
Danger to humans - Contents
The shark appears to pose a threat to humans, but this has not been proven. Most likely the shark is a specialized species that feeds primarily on small fish. There are much more dangerous sharks in the Ganges, the bull shark; it represents a greater definite danger than this threatened and elusive species. |
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