SAMATUS. KJV and ASV form of Shemaiah and Shallum.
International Standard Bible Encyclopedia (1915)
One of the sons of Ezora who put away their "strange wives" (1 Esdras 9:34). It is difficult to say which, if any, name it represents in parallel Ezr 10:34 ff, where no "sons of Ezora" are inserted between "sons of Bani" and "sons of Nebo": probably Shallurn (10:42), but possibly Shemariah (10:41).