356 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 24 



PLATE 4 



Petrolisthes platymerus, new species 



Fig. 1. Male holotype, dorsal view, x 7. 



Fig. 2. Holotype, right walking leg 3, x 12>^. 



Fig. 3. Right antennule, basal segment, ventral view, x 25. 



