Laubuka, Bleeker, 1859

Key to Laubuka species in South and southeast Asia

1) Pelvic fin elongated, surpassing anal-fin origin............................................................. 2

- Pelvic fin short, not reaching or extending beyond anus....................................................... 4

2) Branched pectoral-fin rays 9, anal-fin rays 14½–15½................................................. L. fasciata View in CoL

- Branched pectoral-fin rays 10–12, anal-fin rays 17½–19½.................................................... 3

3) Branched pelvic-fin rays 6, scales between dorsal-fin origin and lateral line 6½, pelvic-fin length 31.2–35.3% SL.... L. hema

- Branched pelvic-fin rays 5, scales between dorsal-fin origin and lateral line 7½, pelvic-fin length 23.2–26.9% SL... L. latens

4) Presence of distinct short vertical bars on the anterior side.................................................... 5

- Absence of short vertical bars on the anterior side........................................................... 8

5) Branched dorsal-fin rays11½–12½........................................................ L. caeruleostigmata View in CoL

- Branched dorsal-fin rays 8½–9 ½......................................................................... 6

6) Presence of dense tubercles on the lower jaw............................................................... 7

- No tuberculation on the lower jaw................................................................ L. varuna View in CoL

7) Lateral-line scales 29–32, pelvic-fin length 14.9–20.8% SL............................................. L. tenella

- Lateral-line scales 34–37, pelvic-fin length 26.0–28.5% SL........................................... L. lankensis View in CoL

8) Presence of a prominent midlateral line along the side or on the posterior side of body both in preserved and live specimens. ................................................................................................... 9

- Presence of an indistinct midlateral line on posterior side of body, or absence in live specimens...................... 12

9) Predorsal scales 20........................................................................... L. siamensis View in CoL

- Predorsal scales 14–18............................................................................... 10

10) Presence of a caudal-peduncle spot...................................................................... 11

- Absence of a caudal-peduncle spot........................................................... L. parafasciata

11) Body depth 18.8–20.1% SL, caudal-peduncle depth 6.4–7.3% SL, predorsal length 61.6–66.4% SL............. L. trevori

- Body depth 29.7–37.7% SL, caudal-peduncle depth 9.0–10.1% SL, predorsal length 74.0–77.0% SL........... L. laubuca View in CoL

12) Lateral line incomplete, lateral line scales 16–25............................................... L. khujairokensis

- Lateral line complete, lateral line scales 28–30............................................................. 13

13) Dorsal-fin-base length less than half of anal-fin-base length, branched pelvic-fin rays 6, branched pectoral-fin rays 9–10............................................................................................ L. myitthaensis

- Dorsal-fin-base length more than half of anal-fin-base length, branched pelvic-fin rays 4–5, branched pectoral-fin rays 7–8.......................................................................................... L. indawgyiana