. . "Maoricrypta costata"@en . . "Crepidula costata (Sowerby, 1824)" . . . "Maoricrypta costata, or the ribbed slipper shell, is a species of intertidal medium-sized sea snail, a marine gastropod mollusc in the family Calyptraeidae. This species occurs along the east coast of the North Island, New Zealand."@en . . . .