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18) Sri Lanka five-eyed spiny eel - Macrognathus pentophthalmos - CR (Possibly extinct / PE in Sri Lanka).
Main threats / note: Local extinction from habitat degradation, water pollution, and changes in waterways.
Scientific name: Macrognathus pentophthalmos
Status: Critically Endangered / possibly extinct locally.
Lifespan: Freshwater fish typical lifespan a few years to a decade (varies).
Reproduction: Eggs deposited in freshwater habitats.
Diet: Invertebrates and small aquatic prey.
Range: Endemic Sri Lankan freshwater systems (historically).
Size / weight: Small–medium freshwater fish (tens of cm).
2025 September 19