386 ALLAN HAXCOCK PACIFIC EXPEDITIONS VOL. 24 



PLATE 19 



Fig. 1. Petrolisthes liirtispinosus Lockington, male. Puerto San Carlos, 



Gulf of California. 

 Fig. 2. Petrolisthes armatiis (Gibbes), male. Bahia de Salinas, Costa 



Rica. 

 Fig. 3. Petrolisthes desmarestii (Guerin), male. Coronal, Chile. 

 Fig. 4. Petrolisthes galatliinus (Bosc), male. Panama City, Panama. 



