ABSTRACT Mystus nigriceps is a fish that in habit the Tapung River. To understand the morphometrical and meristical characteristics and growth pattern of this fish, a research had been conducted from April to May 2018. There were 100 fishes (99.68-190.6 mm SL and 4.92-49.32 gr BW) were captured. There were 30 characteristics measured and 9 meristical characteristics counted. Results shown tha…