Key to species of Aliaporcellana

1. Rostrum with lateral lobes produced and visible in dorsal view. Dactylus of smaller cheliped with acute, slender teeth on dorsoflexor (posterior) margin .......................................................................................... 2

- Rostrum with lateral lobes produced but usually not visible in dorsal view. Dactylus of smaller cheliped unarmed or crenulated on dorsoflexor margin............................................................................................. 3

2. Lateral lobes of rostrum serrated or tuberculated on anterior margin. Dactyli of ambulatory legs each with small corneous spine on flexor margin .............................................................. A. pygmaea (de Man, 1902)

- Lateral lobes of rostrum each terminating in small spine. Dactyli of ambulatory legs unarmed on flexor margin ............................................................................................... A. kikuchii Nakasone & Miyake, 1969

3. Dactyli of ambulatory legs each with flexor claw larger than but subequal in length to extensor claw, flexor margin without rounded knob .................................................................... A. suluensis (Dana, 1852)

- Dactyli of ambulatory legs each with flexor claw distinctly larger than extensor claw, flexor margin with proximal rounded knob ................................................................................ A. telestophila (Johnson, 1958)