I'm having a really hard time finding good images, (SEM, microphotography, etc.) of the radial shields of Schizostella bifurcata, and Ophiactis virens. I've exhausted my library's (and Google's) reliable resources. Does anyone out there happen to have pictures of the dorsal surface of either of these specimens? SEM images would be helpful as well!

Thank you in advance!

Cheers,

MacKenna