Bar Bahlul refers to the Nile crocodile ܚܪܕܢܐ ܕܢܝܠܘܣ, and distinguishes between those who stay in the water and those who are on land, the skink = sqnqwr.
Cf. Löw, "Lurchnamen" 1, 136ff. In PTA it seems to be used as a generic term for lizard. Fauna 85+.