Armina occulta n. sp. is characterized by its black dorsum with white notum narrowed forming two transverse dark bands, divergent and bifurcated posteriorly; orange mantle edge; black foot with a thick marginal band of deep blue; rhinophores deep blue with yellow tips, and a black subterminal band. On the genus Armina (Gastropoda: Heterobranchia: Nudibranchia) in Thailand
鎌田 陽介
