Istalcurus
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Hastings' Dictionary of the Bible [1]
Istalcurus ( 1Es 8:40 ). ‘Uthi the son of Istalcurus’ here stands for ‘Uthai and Zabbud’ in Ezra 8:14 .
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
"In 1 Esdras 8:40. the son of Istalcurus' ( Ὁ Τοῦ Ι᾿Σταλκούρου ) is substituted for ‘ and ZABBUD' of the corresponding list in Ezra 8:14. The Keri has Zilkkur instead of Zabbud, and of this there is perhaps some trace in Istalcurus."
International Standard Bible Encyclopedia [3]
is - tal - kū´rus ( Ἰσταλκοῦρος , Istalkoúros ): 1 Esdras 8:40, corresponding to Zabbud in Ezra 8:14 . In Swete's text the name is Istakalkos.