378 ALLAN HAXCOCK PACIFIC EXPEDITION'S VOL.10 



PLATE 37 



Figures 84, 85, Phragmatopoma perucnsis: Fig. 84, outer opercular 

 palea, the distal flange straightened out from a recurved posi- 

 tion; Fig. 85, middle opercular palea. 



Figures 86-89, Phidt/matopoma californica: Fig. 86, outer opercular 

 palea from the side, with appendage in normal position; Fig. 

 87, distal end of outer palea with plumose appendage, showing 

 scabrous upper surface; Fig. 88, middle opercular palea; Fig. 

 89, its companion inner palea. 



