428 ALLAN' HAXCOCK PACIFIC EXPEDITIONS VOL. 24 



PLATE 40 



Fio;. 1. Met)al()hra( Ilium perti^vianurn, n. sp., male holotype (I'SNM 

 102413). Islas Lobos de Afuera, Peru. 



Fig. 2. Megalohracliiutn erosuin (Glassell), male. Isla Isabel, Mexico. 



Fig. 3. Megalobrach'tum festal (Nobili), female. Acapulco, Mexico. 



Fig. 4. Megalohracliiutn tuberculipes (Lockington), male. Isla Tur- 

 ner, Ciulf of California. 



