58 (41) Eyestalks shorter than width of front; gap of varying size between third maxillipeds 



Family Grapsidae 59 



58 (41) Eyestalks longer than width of front; third maxillipeds nearly or quite closing over 



buccal area Family Ocypodidae 60 



59 (58) Carapace broader than long and almost rectangular in outline; third maxillipeds with 



oblique hairy ridge crossing ischium and merus Sesarma reticulatum 



Figure 106. — Sesarma reticulatum; A. carapace and eyes; B, third maxilliped. 



59 (58) Carapace about as long as broad, somewhat narrowed and rounded in adults; third 

 maxillipeds without hairy oblique ridge crossing ischium and merus; legs strongly 

 fringed with hairs. (Occurs on Sargassum and flotsam.) Planes minutus 



Figure 107 — Planes minutus; carapace and eyes. 



37 



