Fig. 20 in A Spanish dancer? No! A troupe of dancers: a review of the family Hexabranchidae Bergh, 1891 (Gastropoda, Heterobranchia, Nudibranchia)

Fig. 20 Ontogeny, color, and variation in Hexabranchus morsomus. Green circles indicate studied specimens and red online sources. A early transitional, B mid-transitional, C late transitional, D mature,