394 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 24 



PLATE 23 



Fig. 1. Pelroiisthcs leivisi leivisi (Glassell), female. Isla Maria Cleo- 



fas, Isias Las Tres Marias, Mexico. 

 Fig. 2. Petrolisthfs leivisi austrinus, n. subsp., female paratype. Cabo 



de San Francisco, Ecuador. 

 Fig. 3. Petrolisthes ortjnanni Nobili, female. Los Frailes, Gulf of 



California. 

 Fig. 4. Petrolisthes crenulatus Lockington, male. Isla Espiritu Santo, 



Gulf of California, 



