MATRI´NUS
MATRI´NUS (
Ματρῖνος), a river of Picenum, flowing into the Adriatic, now called
La Piomba. Strabo describes it as flowing from the city of Adria, but it is in reality intermediate between Adria (
Atri) and Angulus (
Civita S. Angelo).
According to the same writer it had a town of the same name at its mouth, which served as the port of Adria. (
Strab. v. p.241.) Ptolemy also mentions mouth of the river Matrinus next to that of the Aternus, from which it is distant about 6 miles (
Ptol. 3.1.20), but he is certainly in error in assigning it to the Marrucini.
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E.H.B]