Ptyas, ptyadis, pen. cor. f. g. Plin. An Adder of coulonr greene, drawing to the colour of golde.Ptynge.A rauenous birde sometime fighting with the Egle so valiantly, that in crapling togither they fall bothe to the grounde, and be taken of shepeheardes.
Lewis and Short: Latin dictionary
ptas, ădis, f., = ptua/s, a kind of serpent, said to spit venom into the eyes of men, Plin. 28, 6, 18, 65; 31, 6, 33, 65.