 "Caridina" shrimps, Parathelphusid crabs and "Tylomelania" snails) as well as many plants.The endemic fishes of Matano have been compared to the species swarms of the Rift Valley Lakes of Africa.While not as diverse, they are thought to have all arisen from a single ancestor species and diversified into numerous different species, which now fill many of the previously vacant ecological niches, as can be seen in the family Telmatherinidae.