® . No row of enlarged scales along 
second dorsal base; bones of head 
firm, sensory canals moderate; 
scales all imbricate; second dorsal 
spine trenchant, serrate. 
n . Snout moderately extended-- 
-----Lionurus. 
22; . Snout greatly extended.- 
------—Mataeocephalus. 
2 
Enlarged modified scales only 
anteriorly basal on second dorsal 
and anal; head normal, bones firm; 
scales not imbricate, diamond 
shaped; second dorsal spine smooth, 
rounded; snout subconic, slightly 
projecting.-Trachonurus. 
3 
m . Scales enlarged along dorsal base; 
head massive, skull with high 
crests; snout wide, high; scales 
with erect spinules; dorsal spine 
serrate.- C eto^ r us. 
. Ateleobrachinae. Pectoral strongly pedunculated; 
first dorsal and ventral fins extended.- 
_Ateleobrachium, 
