(Oxylapia polli)
Oxylapia polli ( Gr.: Oxy = sharp + Tilapia ) is a Cichlid,which occurs endemic in eastern Madagascar.The only known locality of the species is a rapids region of the Nosivolo River near the town of Marolambo in the Atsinanana region,It is located about 450 meters above sea level on the eastern edge of the Central Madagascan highlands.thus possibly has one of the smallest distribution areas of all Malagasy cichlids.Due to the inaccessibility of the region,however,neither the headwaters of the Nosivolo nor other comparable biotopes have been investigated for occurrence of the species.The species was named in honor of the Belgian ichthyologist Max Poll.