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Photo images of two sampling sites (A, C) and typical pale tan colored microbial mats (B) and streamers (D) at Nakabusa hot springs.
A, Microbial mats developed on a concrete wall that hot spring water runs down (Wall Site); B, typical pale tan colored microbial mats at 72–75°C at the Wall Site; C, a hot spring water stream in which pale tan colored streamers are observed (Stream Site); D, typical pale tan colored streamers at 75°C at the Stream Site.
