Figure 2: Important body measurement of Heterobranchus specimens: 1. total length (TL): 2. standard length (SL); 3. head length (HL); 4. preanal distance 5. prepelvic distance; 6, dorsal hm length; 7, anal final length; , distance between occipital process and dorsal fin original; 9, dorsal fin depth; 10, distance between dorsal and caudal fin; 11, adipose fin length; 12, adipose fin depth; 13, pectoral spine length; 14, pectoral fin length ; 15, pevlic fin length; 16, body depth atanus; 17, caudal peduncle depth; 18, predorsal distance