The Merarite clans: Mahli and Mushi. These were the Levite clans, according to their families.
NMVAnd the sons of M’rari [Bitter] by their families; Machli [Sick], and Mushi [Yielding]. These [are] the families of the Levi’im (Levites) [Joined to] according to the house of their fathers.
OJBAnd the Bnei Merari by their mishpekhot: Machli and Mushi. These are the mishpekhot of the Levi'im according to the bais of their avot.
Onkelos (Etheridge)And the Beni-Merari by their families, Mahali and Mushi; these are the families of the Levites after the house of their fathers.
T4TMerari had two sons: Mahli and Mushi. The clans that were descended from them had the same names as those two sons. Those are the clans that were descended from Levi.