FIGURES 9–12. Sporolithon mesophoticum Holotype, NCU 658543. 9 in Sporolithon mesophoticum sp. nov. (Sporolithales, Rhodophyta) from Plantagenet Bank off Bermuda at a depth of 178 m

FIGURES 9–12. Sporolithon mesophoticum Holotype, NCU 658543. 9. Surface view of tetrasporangial sori (arrows). Scale bar = 0.1 cm. 10. Surface view of tetrasprangial sorus with pores (arrows). Scale bar = 258 μm. 11. Surface view of tetrasprangial sorus with pores (arrows) including portion where upper cell layers were removed (bracket) showing top-down view of tetrasporangial compartments (stars). Scale bar = 164 μm. 12. Surface view of a tetrasporangial pore (*) with rosette cells (circle pointers). Scale bar = 27 μm.