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PLATE 91. 
1-3. Argopatagus vitreus A. Ag.; “Challenger” Station 191. 
. Abactinal side of fragment about 48 mm. in length, 
Actinostome and surrounding plates of same fragment. 
Abactinal system of same fragment as fig. 1. 
4-7. Genicopatagus affinis A. Ag.; “Challenger’’ Station 157. 
° 
. Actinal side of fragment 37 mm. in length. 
Same as fig. 4, seen from the abactinal side. 
Abactinal system of fig. 5. 
. Anal system of same. 
