And the sons of Bela were, Addar, and Gera, and Abihud,
The sons of Bela were Addar, х 'Adaar (H146) = 'Aard (H714)] (Genesis 46:21).
Gera - though classed (Genesis 46:21) with the family of Benjamin, appears to have been a grandson, son of Bela, but is not mentioned in Numbers 26:38. "And Gera." This name, repeated twice (1 Chronicles 8:5; 1 Chronicles 8:7). designates one individual, who is mentioned in Judges 3:15 and 2 Samuel 16:5 (see the notes at Benjamin's genealogy, Genesis 46:21).
Abihud - х 'Abiyhuwd (H31)] or х 'Eehuwd (H164)] Ehud (Judges 3:14-30).