Genus Aplodactylus

Key to species of Aplodactylus (after Russell, 2000)

1a. Lateral line scales 72-82; vomerine teeth absent ..........................................................................................A. lophodon
1b. Lateral line scales 83-120; vomerine teeth present (usually weakly developed) .......................................................2

2a. Upper profile of head more or less straight; interorbital space convex; upper lip bulbous and protruding ......3
2b. Upper profile of head distinctly notched behind eye; interorbital space concave ..............................A. etheridgii

3a. Head 4.3-4.5 in SL; gill rakers 21-25....................................................................................................................A. westralis
3b. Head 3.5-4.8 in SL; gill rakers 17-22...................................................................................................................A. arctidens