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Comment from Nathalie Yonow: Phyllidiopsis xishaensis is well known throughout the Indo-Pacific as Phyllidiopsis striata Bergh, 1889. This is a misnomer as Phyllidiopsis striata Bergh, 1889 is a valid species, in the genus Phyllidiella as Phyllidiella striata (Bergh, 1889) [Phyllidiopsis] and clearly different, more similar to Phyllidiella rosans. Pretty similar are: Phyllidiopsis annae which has black rhinophores and a granular blue mantle with a blue mantle margin and 4 black lines. The 2 median black lines unite between the rhinophores. Phyllidiopsis phiphiensis which has black rhinophores, 2 low white ridges on the mantle with a white mantle margin with black spots and 3 black lines. This species was first reported from the Phi Phi Islands, Thailand and not yet from the Philippines. Phyllidiopsis sphingis which has white rhinophores, 3 low white ridges on the mantle with an iridescent blue broad margin and 4 black lines with black rays extending to the mantle edge. The 2 median black lines unite between the rhinophores. More informations on Phyllidiopsis xishaensis are at Bill Rudman's Sea-Slug Forum! |