1. Upper and lower faces of chela with tubercles (sometimes indistinct in juveniles). Pleura of abdominal somites II-V, each rounded or bluntly pointed. Telson with only one lateral spine.............................................................................................. 2

— Upper and lower faces of chela smooth. Pleura of abdominal somites II-V, each with sharp, posteriorly curved median tooth. Telson with two lateral spines.................. 7

2. Dactyl of cheliped with spines over full length of outer margin.............................. 3

— Dactyl of cheliped with only two or three spines on distal part of outer margin (sometimes with a few proximal spines).................................................................. 4

3. Carapace with two intermediate spines and three lateral spines; postcervical spine absent...................................................................................... Enoplometopus pictus

— Carapace with one intermediate spine and two lateral spines; postcervical spine present...................................................................................... Enoplometopus crosnieri

4. Carapace with an indistinct postcervical spine........................................................ 5

— Carapace with a marked postcervical spine............................................................ 6

5. Lateral face of carapace with vertical streaks (lateral margin of rostrum with three spines).................................................................................... Enoplometopus daumi

— Lateral face of carapace without vertical streaks (lateral margin of rostrum with two spines)...................................................................................... Enoplometopus chacei

6. Carapace armed with five median spines.......................... Enoplometopus occidentalis

— Carapace armed with four median spines.............................. Enoplometopus debelius

7. Carapace with two postcervical spines; dactyl of chela without spines on outer margin; margins of abdominal pleura II-V smooth in adults........................................ 8

— Carapace with one postcervical spine; dactyl of chela with spines along entire outer margin or restricted to distal portion of outer margin; margins of abdominal pleura II-V finely denticulated in adults.......................................... Enoplometopus callistus

8. Chela five to six times longer than wide................................................................ 9

— Chela three times longer than wide.................................... Enoplometopus antillensis

9. Posterior margin of sixth abdominal tergite without spines; carapace with spots.................................................................................................. Enoplometopus gracilipes

— Posterior margin of sixth abdominal tergite with two short spines; lateral face of carapace with large white circle or with network of streaks........................................ 10

10.Spines of abdominal pleura long, those of pleura IV-V reaching to posterior margins of pleura; lateral face of carapace with a large white ring; palm of chela without bands.................................................................................. Enoplometopus holthuisi

— Spines of abdominal pleura short, those of pleura IV-V not reaching to posterior margins of pleura; lateral face of carapace with a network of streaks; palm of chela with bands...................................................................... Enoplometopus voigtmanni