Etisus dentatus is similar to Etisus splendidus, but has black eyes, typically more brown color, and less developed spines on the edge of the carapace, usually numbering 7 to 9 while E. splendidus has more. Still, color is not a reliable characteristic to distinguish these two species. Etisus splendidus is often more red but can range into brown, and E. dentatus is more often brown but can range to red. The main differentiating feature we have tried to use (where we can see it) is that E. splendidus has more than one large spine at the elbow joint between the last two segments of the cheliped while E. dentatus has only one.
Created 21 September 2018
Updated 17 July 2021