Yellow rasbora or pepudah (Rasbora lateristriata) is a petite and agile fish belonging to the native fish of Lombok Island, that can be found in almost all rivers on the island. The research aim is to provide morphometric and gonad data to find out the pattern of relation and growth pattern of pepudah. Fish samples were captured in the May-June 2017 period at Selaka River and Babak River (23 individuals/river). Identification of fish carried out in at Basic Laboratory, Fisheries Faculty, University 45 Mataram. Identification dataare processed quantitatively to describe the morphology of pepudah. MCR pattern is C = -a + b TL; LWR pattern is log W = -a + b log TL; and growth pattern is positive allometric (b = 3.06). The K valueis 0.952 which means the body shape is slightly flattened and the physical condition is ready to reproduce. Gonad maturity reaches: GSI > 3.0%, GI > 20, and GML = III-V. Biologically, there are differences of pepudah in Selakariver and Babakriver. Ecologically, waters of Babakriveris better able to provide raw materials for the necessities of life, survival, and breeding of pepudah
