PLATE XXIII. 
Page 
Figs. 1-4. PoRCELLANASTER TUBEROSUS, D. Sp. . : t 140 
. Abactinal aspect; magnified 3 diameters. 
. Actinal aspect ; magnified 3 diameters. 
. Profile view; magnified 3 diameters. 
. Direct lateral view of a ray, in outline; magnified 3 diameters. 
[For magnified details of this species see Pl. XX VII. figs. 138-16. ] 
Figs. 5-7. STYRACASTER HORRIDUS, 0. sp. : eee 1) ) 
. Abactinal aspect ; magnified 14 diameters. 
. Actinal aspect ; magnified 15 diameters. 
. Direct lateral view of a ray ; magnified 15 diameters. 
[For magnified details of this species see Pl. XXVIL. figs. 17-20. | 
