A NEW NEMACHEILUS FROM SUMATRA 
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Table 2 Comparison of selected features helpful in distinguishing Nemacheilus tuberigum from N. selangoricus and N. spiniferus. 
Colour Pattern 
Eye diameter 
Dorsal fin 
Caudal fin 
Pectoral fin 
Lateral line pores 
N. tuberigum 

Body with 8-13 dark brown blotches, 
sometimes fused to form a longitudinal 
stripe in larger specimens. 
10-15 dark brown saddles on the back, 
sometimes some of which are in contact 
with blotches on sides. 
Smaller, 5% SL (4.5-5.5%) 
26.5% HL (23.9-29.9%) 
Dorsal fin dusky, without spot at 
anterior base 
Height of dorsal fin shorter 
15.9% SL (12.3-28.5%) 
85.8% HL (65.8-108.7%) 
Upper caudal lobe, shorter 
24.4% SL (21.0-18.5%) 
126.5% HL (111-146.4%) 
Lower caudal lobe shorter 
23.4% SL (15.7-20.8%) 
123.4% HL (112.8-136.0%) 
Shorter, 
17.8% SL (15.7—20.8%) 
92.9% HL (83.3-106.2%) 
Complete, 82.6 (76-90) 
*Data from Kottelat (1984). 
N. selangoricus* 
N. spiniferus* 

Body with 8—12 dark brown bars. 
Larger, 5.7% SL (4.7-6.9%) 
29% HL (23-33%) 
Dorsal fin with 2 distinct black stripes and 
a black spot at anterior base 
Taller, 
20.2% SL (16.4—24.9%) 
101% HL (81-123%) 
Longer, 
33.4% SL (29.6-40.8%) 
165.0% HL (144 -211%) 
Longer, 
28.8% SL (24.3-33.0%) 
145.0% HL (127-158%) 
Longer, 
21.1%SL (17.0-24.7%) 
106% HL (92-122%) 
Complete, 84.3 (77-96) 
Body with 10-13 dark brown bars. 
Larger, 6.5% SL (5.7-7.4%) 
31% HL (26-33%) 
Dorsal fin with irregular stripes and a 
black spot at anterior base 
Taller, 
20.7% SL (16.9—23.2%) 
98% HL (80-113%) 
Longer, 
30.6% SL (26.8-34.1%) 
142% HL (120-160%) 
Longer, 
28.8% SL (23.8-34.3%) 
135% HL (112-153%) 
Longer, 
22.3% SL (19.1-26.7%) 
105% HL (94-123%) 
Complete, 88 (83-93) 
