362 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 24 



PLATE 7 



Petrolisthes ariifrons, new species 



Fig. 1. Male holotype, dorsal view, x 5. 



Fig. 2. Right walking leg 1, x Syz. 



Fig. 3. Right antennule, basal segment, ventral view, x 12J/2. 



