Invertebrates Flora Botanical gardens Civil societies Sri Lanka is a tropical island situated close to the southern tip of India.
Because of being an island, Sri Lanka has many endemic freshwater fauna, including fish, crabs, molluscs, and other aquatic insects.
Class: Actinopterygii Freshwater fish are physiologically differ from marine and brackish water forms.
The low salinity and high osmotic pressure makes them so different.
There are 95 species of freshwater fish occur in the country, where 53 of those are endemic.
41% of all known species of fish of Sri Lanka are found in freshwater.
However, the taxonomy and descriptions were cited as problematic by fellow local ichthyologists.