Fig. 1
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Fig. 2
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1A BODY DARKLY OPAQUE; VARIOUSLY MOTTLED OR UNIFORMLY COLORED. PAIRED FINS WITH ENLARGED OUTER RAYS. ADULTS GENERALLY LARGER THAN 60 MM SL........................ 2
1B BODY MILKY WHITE; OPAQUE OR TRANSLUCENT OFTEN WITH DELICATE BANDING OR SPOTTING. PAIRED FINS WITHOUT ENLARGED OUTER RAYS. ADULTS SMALL, GENERALLY LESS THAN 60MM SL ...............................6
2A CAUDAL PEDUNCLE SHORT (LENGTH >5 TIMES IN SL) AND DEEP
(DEPTH <3 TIMES IN LENGTH) (FIG. 1A), BARBELS SLENDER AND FILAMENTOUS ..................................AMPHILIUS
2B CAUDAL PEDUNCLE LONG (LENGTH <5 TIMES IN SL) AND NARROW (DEPTH >3 TIMES IN LENGTH) (FIG. 1B,C), BARBELS SHORT AND PAPILLOSE...............................3
3A BODY WITHOUT EXTERNALLY VISIBLE BONY RIDGES...............................DOUMEA
3B BODY WITH BILATERAL, DORSAL AND VENTRAL BONY RIDGES CLEARLY VISIBLE (FIG. 1B,C) ...............................5
4A VENTRAL BONY SCUTES ANTERIOR TO PELVIC FIN (FIG. 1B) ...............................5
4B NO BONY SCUTES ANTERIOR TO PELVIC FIN (FIG. 1C)...............................
PHRACTURA
5A NO SPINE ALONG MARGIN OF ADIPOSE FIN (FIG. 2A) ...............................BELONOGLANIS
5B WELL-DEVELOPED SPINOUS PROCESS ALONG ANTERIOR MARGIN OF ADIPOSE FIN (FIG. 2B) ...............................TRACHYGLANIS
6A DORSAL AND PECTORAL FINS WITHOUT LOCKING MECHANISM. DORSAL AND PECTORAL FIN SPINES FLEXIBLE, WITH OR WITHOUT WEAK SERRAE ...............................7
6B FINS WITH LOCKING MECHANISM. DORSAL AND PECTORAL FINS WITH STOUT SPINES, PECTORAL SPINE STRNGLY SERRATE ...............................ZAIREICHTHYS
7A JAW TEETH UNICUSPID ...............................8
7B JAW TEETH MULTICUSPID ...............................TETRACAMPHILIUS
8A LOWER JAW TOOTHED ...............................9
8B LOWER JAW TOOTHLESS ...............................LEPTOGLANIS
9A DORSAL FIN INSERTION NEAR HEAD, NO RHINAL LOBE ...............................DOLICHAMPHILIUS
9B DORSAL FIN INSERTION NEARER MID-BODY, SNOUT WITH DISCRETE RHINAL LOBE ...............................PSAMMPHILETRIA
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