Page:Beautiful·Shells·of·New·Zealand-Moss-1908.pdf/38

 SURCULA CHEESEMANI (Plate VII.).—Figs. 15 and 16 (late Pleurotoma) is a shell varying from pale pink to brown in colour. Interior rose or purple. The spire end is usually smooth. It is found in Auckland, and is about one inch in length.

SOLIDULA ALBA (Plate VII.).—Fig. 14 (late Buccinulus kirki) is a whitish shell, found in the North of Auckland. Its extreme length is ¾ inch.

POTAMIDES SUB-CARINATUS (Plate VIl.).—Fig. 13 (late Cerithidea subcarinata) is a dull black shell seldom over half an inch long. The colour is usually concealed by the reddish-brown epidermis. The interior is dark purple.

POTAMIDES BICARINATUS (Plate VII.).—Fig. 10 (late Corithidea bicarinatus) is a reddish-brown or purple shell, covered with a blue or brown epidermis. The interior is purple. It is found in the North Island in large numbers on banks of sand mixed with mud near high water mark. Its extreme length is one inch.

SCALARIA ZELEBORI (Plate VII.).—Fig. 17 is the New Zealand representative of the Wentletrap family. It is a pure white shell, sometimes over an inch in length. The numerous ribs across the whorls are very prominent, and look like the steps of a ladder, whence it derives its name. It lives in the ocean below low water mark, and I have dredged it up with the Ethalia zelandica (Plate VI, Fig. 7). The Maori name is Totoro.

SCALARIA TENELLA (Plate VII.).—Fig. 18 is a dirty yellow, almost transparent, shell about a-third of an inch long. There is usually a pale brown band near the centre of the whorl. Found about half-tide mark in sheltered water.

TEREBRA TRISTIS (Plate VII.).—Fig. 20 is a bluish or blue-grey shell, slightly over half an inch in length, The interior is brownish-white, with a yellow band in the centre of the whorl. The varices on the exterior are not so prominent as in the Potamides (Fig. 13).

TENAGODES WELDII (Plate VII.).—Fig. 21 (late Siliquaria australis) is a small white shell, not more than one inch long. It is found in Hauraki Gulf.

TROPHON DUODECIMUS (Plate VII.).—Fig. 22 (late Kalydon duodecimus) is a pale yellow shell, usually covered with