Identification of Osteochilus spilurus (Cyprinidae: Labeoninae) from North Lampung using meristic and cytochrome b gene

Osteochilus spilurus is one of the native fish in Indonesia. This species from North Lampung has variations body shape with populations Bangka and Belitung. Morphological plasticity genetic variation are potential causes these differences. To confirm this, it necessary to identify molecular using mitochondrial cytochrome b (cyt b) gene. Fish samples had morphological characters that matched description O. spilurus. research specimen was registered at Bogor Zoological Museum as a supplementary note Lampung. The phylogenetic construction shows closer relationship between Bangka-Belitung, but there wide distance them. Genetic islands occur predicted due differences ancient river flows past geographical isolation oceans for thousands years.Keywords: Cytochrome b; Lampung; spilurus; Variation