Tellina listeri:

Speckled Tellin. Length ranges from 1 to 2 inches. Shell is rather long and thin, not polished. Anterior end is rounded, while the posterior end is rostrate (beaked). Beaks are nearly central and low. Surface is sculpted with strong, equidistant concentric lines. Colour is creamy white, with crowded streaks of brownish purple, with a polished white interior . This species is foud in sallow water.