SAMATUS (1Es_9:34) = Shallum, Ezr_10:42.
Hastings' Dictionary of the Bible
Edited by James Hastings, D.D. Published in 1909
sam?a-tus (Σάματος, Sámatos): 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 (Ezr_10:42), but possibly Shemariah (Ezr_10:41).
International Standard Bible Encyclopedia
PRINTER 1915.
Samatus
(Σαματός; Vulg. Semedius), given in the Apocrypha (1Es_9:34) as the name of the fourth of the six sons of Osora (i.e. Abiah or Mochnadebai) among those Israelites who had married foreign wives after the captivity; but the Heb. list (Ezr_10:41-42) contains the names Shelemiah, Shemariah, and Shallum in the corresponding place.
CYCLOPEDIA OF BIBLICAL, THEOLOGICAL AND ECCLESIASTICAL
press 1895.