:::Re: "This can be translated as Strombus (S.) with a shell (testae) having a retuse (retuso), short (brevi), rounded (rotundato) lip (labro), and (-que) a smooth (laevi) spire (spira)."—Almost, but testae is genitive and laevus, -a, um is 'left, left-handed', not 'smooth' (which is levis, leve). So for S. testae labro rotundato brevi retuso, spiraque laevi, try 'S. with the lip of the shell rounded, short, retuse, and a left-hand spiral'.