FIGURE 3. A in Two new species of Geodiidae (Porifera, Demospongiae, Astrophorina) from the Emperor Seamounts, North Pacific Ocean

FIGURE 3. A, SEM photo of the bottom-side of a cortex peel. Dichotriaenes are embedded in the cortex with their cladomes. Rhabdomes reach into the choanosome. B, SEM photo of different spicule types of Erylus imperator. Oxeas, aspidasters and oxyasters are visible. C, Close-up of oval aspidaster. At upper margin of aspidaster an oxyaster with only one remaining ray, resembling a tylostyle, is visible. D, Oxyasters with different numbers of reduced rays. Reduced rays often visible as rounded knobs. Left margin shows part of an oxeon. E, Close-up of tylostyle-like, single-rayed oxyaster. F, Centrotylote microstrongyle at the ornamented surface of an aspidaster.