Figure 4 in Here be dragons - phylogeography of Pteraeolidia ianthina (Angas, 1864) reveals multiple species of photosynthetic nudibranchs (Aeolidina: Nudibranchia)

Figure 4. Scanning electron microscopy of Pteraeolidia radulae. A,C, E. Dorsal view P. 'semperi' (respectively Sulawesi I, AMS C.474017; Maui E, AMS C.474049; Heron B, AMS C.474026). B,D,F. Dorsal view P. ianthina (respectively Port Stephens H, AMS C.474043; Sydney E, AMS C.474032; Eden, AMS C.474044). Scale bar represents 10 μm for all, except D and E, where it is 20 μm.