PLATE 40 

 (After Eatlibun) 



Fig. 1. Pmnixa faba, female; dorsal view, X 1%. From clams at Quarantine 

 Dock, Washington. (Page 259.) 



Fig. 2. Same species as fig. 1, male; dorsal view, X 1%. 



Fig. 3. Same specimen as fig. 1, female ; ventral view. 



Fig. 4. Same specimen as fig. 2, male; ventral view. 



Fig. 5. Pinnixa littoralis, female; dorsal view, X 1%. From clams at Quar- 

 antine Dock, Washington. (Page 260.) 



Fig. 6. Same species as fig. 5, male; dorsal view, X 1%. 



Fig. 7. Same specimen as fig. 5, female; ventral view. 



Fig. 8. Same specimen as fig. 6, male; ventral view. 



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