PLATE XII. 



Fig. 4. Ammothea alaskensis sp. nov., male (Lot 25), from above. 



5. Ammothea gracilipes sp. nov., male (Lot 9), from above ; showing egg-masses 



below. 



6. Ammothea pribilofensis sp. nov., male (Lot 23), from above. 



7. Ammothella tiiberculata sp. nov., female (Lot 22), from above. 



8. Ammothella spinifera sp. nov., female ( Lot 14), from above. 



(308) 



