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ANAITIS YATEI (Plate VIII.).—Fig. 29 (late Chione yatei) is a pale yellowish or brown shell, with a purple or slate-coloured patch round the hinge. The ridges on the outside, especially on the young shells, are thin and very high. As the shell attains its full size these ridges wear down. The old shells become thick and heavy, and are over two inches in width. It is found on exposed or ocean beaches in the North Island, and rarely in the South. The Maoris call it Pukauri.
HALIOTIS IRIS (Plate IX.).—Fig. 1 is the Pawa or Papa of the Maori, and the Mutton fish of the colonist. The outside is brown, and the inside a dark metallic blue and green, with an iridescent play of yellow and other colours. It is found on rocks in the open sea or on exposed beaches, and is six or seven inches wide.
HALIOTIS RUGOSO-PLICATA (Plate IX.).Fig. 2 is about half the size of the Haliotis iris, and is known to the Maoris as the Pawa-rore or Koro-riwha. The outside is pinkish-brown, the interior being pale and highly iridescent. It is usually found with the Haliotis iris, but is not so common.
Another Haliotis, named the Virginea, is much smaller and thinner than either of the above. The interior of this is like that of the Haliotis rugoso-plicata, but the exterior is variegated, and dotted and splashed with every conceivable colour. It is rare, and usually found on the sheltered side of small islands in the open sea.
GLYCYMERIS LATICOSTATA (Plate IX.).—Fig. 3 (late Pectunculus laticostatus) is a very solid, reddish-brown shell, sometimes (especially in the immature shells) splashed with chestnut and white. The six or eight teeth near the hinge on both valves are of even size and shape. It is usually found cast up on ocean beaches. The shell attains a length and breadth of three and a-half inches. The younger shells have ridges or ribs on the outside, but these wear off with age. The Maori name is Kuakua.
GLYCYMERIS STRIATULARIS (Plate IX.).—Fig. 4 (late Pectunculus striatularis) is a small brownish shell, irregularly
