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south, but not below Banks Peninsula." (Suter).

Mount Maunganui.

Plate V
No. 27

Euthria linea (eu, well; Thriae, the Parnassian nymphs, nurses of Apollo; linea, marked with lines).—A fusiform or spindle-shaped spiral univalve, belonging to the rapacious Whelk family. It has a strong and thickly-built shell of a greyish or yellowish colour, with slightly raised dark-brown or black stripes running spirally from apex to base. Although not exactly a handsome shell, it has a decidedly smart appearance. About one and three-quarter inches in length. Found among rocks at low tide.

North and South Islands. Mount Maunganui.

Plate V
No. 28

Euthria littorinoides (eu, well; Thriae, the Parnassian nymphs, nurses of Apollo; littorina, inhabiting the sea-shore; oidos, liketh).—This species is a most variable one, but may be usually recognised by the fact of the whorls of the spire not being so conspicuously defined from each other as in the other members of the genus. It is rather small, solidly built, fairly round at the periphery of the body whorl, of a pale slaty or bluish-grey colour, with well-marked narrow purple or black spiral stripes, which stand out in very slight relief. It is about an inch in height and is found on rocky ground among loose boulders near to low-water mark.

North and South Islands. Makatu; Mount Maunganui; Chatham and Auckland Islands.

Plate V
No. 26

Euthria martensiana (eu, well; Thriae, Parnassian nymphs, nurses of Apollo; Martens, the conchologist).—An elongated, gracefully-shaped, rather thin spiral univalve, with the sutures of the spire whorls well defined, and the aperture much shorter than the height of the spire. The colour is a uniform yellowish brown. It is sculptured with a few very fine spiral ridges, almost indistinguishable, and numerous axial or vertical rounded ribs from the apex to below the middle of the body whorl. The base is contracted, the outer lip of the aperture thin and sharp.

Island Bay, Wellington; Dunedin Harbour; Lyttelton Harbour; Preservation Inlet; Auckland Islands.

Plate V
No. 29

Euthria vittata (eu, well; Thriae, Parnassian nymphs, nurses of Apollo; vittata, garlanded, or filleted). —A small spindle-shaped univalve about three-quarters of an inch in length, of a pale yellowish-brown or greyish-white colour, with a broad band of dark purple on the whorls of the spire, and two on the body whorl. The three

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