PLATE XCIV. 
Figs. 1-5. BENTHASTER WYVILLE-THOMSONI, 0. sp. . . - 4527 
. Abactinal aspect ; magnified 2 diameters, 
. Actinal aspect ; magnified 2 diameters. 
. Adambulacral plates and adjacent portion of the actinal surface ; magnified 
18 diameters. 
. Diagrammatic view of the abactinal paxille and rudimentary supradorsal 
membrane, seen in profile ; magnified. 
. Diagram of the plates on the outer part of a ray ; magnified. 
Figs. 6-9. BENTHASTER PENICILLATUS, 0. sp. . : ; - 929 
. Abactinal aspect ; magnified 2 diameters. 
. Actinal aspect ; magnified 2 diameters. 
. Adambulacral plates and adjacent portion of the actinal surface ; magnified. 
. Diagram of the plates on the outer part of a ray ; magnified. 
