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                |  |  | Biological 
              diversity of Sri Lanka  Sri 
              Lanka is an island, 65,610 km2 in area situated close to the Southeast 
              corner of the peninsula of India. Despite its relatively small size, 
              Sri Lanka possesses a high level of bioddiversity. A nortworthy 
              feature of Sri Lanka's biodiversity is the remarkable high proportion 
              of endemic species among its flora and fauna: 23% of the flowering 
              plants and 16% of the mammals in the island are endemic. Sri Lanka 
              has a wide range of topographic and climatic variation and this 
              contributes to the special features of its biodiversity. 
 Birds 
              of Sri Lanka - Picture Gallery
 Sri 
              Lankan Wild Fauna and Flora - Picture Gallery
 Ecosystem 
              Diversity
 Threatened 
              Plants of Sri Lanka
 Checklist 
              of Mammals of Sri Lanka
 Sinharaja 
              Forest               Sinharaja 
              Trail Map
 Endemic 
              Birds
 Newly 
              discovered fauna from Sri Lanka
 Threatened 
              endemic amphibians of Sri Lanka
 
 Sri Lanka is one of 25 Biodiversity hotspots 
              in the world!
 
 Flora - Number of species described to date in Sri Lanka
 
               
                | Group | Number of described 
                  species | Percentage endemism |   
                | Algae | 866 | NA |   
                | Fungi | 1,920 | NA |   
                | Lichens | 110 | 35 |   
                | Mosses | 575 | NA |   
                | Liverwoths | 190 | NA |   
                | Ferns and Fern allies | 314 | 18 |   
                | Gymnosperms | 1 | 0 |   
                | Angiosperms (Flowering 
                  plants) | 3,350 | 23 |  Fauna 
              - Number of species described to date in Sri Lanka 
 
               
                | Group | Number 
                  of described species | Percentage 
                  endemism |   
                | Protista  (One 
                  celled animals) | 40+ | NA |   
                | Rotifera | 140+ | NA |   
                | Anthozoa (Corals) | 171 | NA |   
                | Annelida 
                  (Earthworms and Leeches) | 18 | NA |   
                | Monogenea (Flatworms) | 23+ | NA |   
                | Crustacea  (Prawns, 
                  crabs and allies) | 400 | NA |   
                | Mollusca (snails 
                  and allies) | 325 | NA |   
                | INSECTA |  |  |   
                | Mayflies | 18 | 100 |   
                | Mosquitoes | 139 | NA |   
                | Beetles | 540 | 23 |   
                | Butterflies | 242+ | 6 |   
                | Arachnida (Spiders) | 400+ | NA |   
                | Pisces - Coastal 
                  fish | 400+ | NA |   
                | Pisces - Freshwater 
                  fish | 61 | 39 |   
                | Amphibia (Frogs and 
                  Toads) | 48 | 52 |   
                | Reptilia (Reptiles) | 162 | 43 |   
                | Aves (Birds) | 441 | 5 |   
                | Mammalia (Mammals) | 90 | 16 |  Sri 
              Lanka: One of 25 World's Biodiversity Hot Spots
 Sri Lanka has been identified by the environment activist group 
              Conservation International (CI) as one of 25 biodiversity hot spots 
              in the world, reported the Time weekly in its January 11 issue.
 
 These hot spots could have maximum benefit by preservation efforts, 
              the magazine said in a cover story titled "Heroes for the Planet: 
              Earth Angles". The U.S.-based CI said that together with Western 
              India, Sri Lanka, the island in the Indian ocean, accounts for 2,180 
              plant species that are unique to each hot spot.
 
 Sri Lanka's tropical rain forest ecosystem is considered as an area 
              which is disturbed by human activity, but still exceptionally rich 
              in animal and plant species found nowhere else.
 
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