Retilaskeya emersonii

(C.B. Adams, 1839)

Family Cerithiopsidae

Emerson Miniature Cerith

Size to 11 mm. Shell with ten to 14 flat whorls. Sculpture of three rows of rounded, glossy beads. Aperture small with thickened outer lip. Coloration of cream to light-brown beads, usually set against a darker-brown background.