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Volume 59, 1928
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Genus Ringicula Deshayes, 1838.
Type: Auricula ringens Lamarck.

Ringicula castigata n. sp. (Fig. 64.)

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Shell minute, ovate; spire about 2/3 height of aperture. Whorls about four, convex. Protoconch smooth, paucispiral, with slightly-tilted nucleus. Sculpture of distant incised lines beginning about end of second whorl, but weak on spire. Penultimate whorl with 6 spirals

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on the side, a smooth band, caused by the omission of a spiral on curve of shoulder, above this a spiral groove forms a border below suture. Body-whorl with two grooves close below suture, then smooth space, then about 16 or 18 grooves, top 5 of which are further spaced than others. Outer lip much thickened and reflexed, curving forward below. Columella with two strong folds. Inner lip forming another calloused fold on the parietal wall.

Holotype in collection of N.Z. Geological Survey.

Height, 1.5 mm.; diameter, 1.1 mm.

The smooth band is not always present, for on some specimens the spirals are continuous.

References.

Cossmann, M., 1918. Essais de Paléoconchologie Comparée, vol. 11.

Finlay, H. J., 1926. A Further Commentary on N.Z. Molluscan Systematics. Trans. N.Z. Inst., vol 57.

Finlay and McDowall, 1924. Preliminary Note on the Clifden Beds. Trans. N.Z. Inst., vol. 55.

Harris, G. F., 1897. Catalogue of Tertiary Mollusca, British Museum, Pt. 1 (Australasia).

Ihering, H. von, 1907. Lea mollusques Fossiles du Tertiaire et du Crétacé Supérieur de l'Argentine. Anales del Museo Nacional de Buenos Aires, Ser. 3, tome 7.

Iredale, T., 1924. Results from Roy Bell's Collections. Proc. Linn. Soc. N.S.W., vol. 49, pt. 3.

Marshall, P., 1917. (a) The Wangaloa Beds, (b) Fossils and Age of the Hampden Beds. Trans. N.Z. Inst., vol. 49.

Marwick, J., 1924. Tertiary and Recent Naticidae and Naricidae of New Zealand. Trans. N.Z. Inst., vol. 55.

—– 1928. Tertiary Mollusca of Chatham Islands. Trans. N.Z. Inst. vol. 58.

Suter, H., 1915. Revision of the Tertiary Mollusca of New Zealand. N.Z. Geological Survey Pal. Bulletin, No. 3.

Suter, H., 1921. Lists of N.Z. Tertiary Mollusca. N.Z. Geological Survey Pal. Bulletin, No. 8.

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Figs. 1, 3.—Nucula vestigia n. sp., holotype × 7. p. 906.
Figs. 2, 5.—Nuculana probellula n. sp., holotype × 4.5, p. 907.
Figs. 4, 6.—Nucula tersior n. sp., holotype × 10. p. 906.
Figs. 7, 9.—Maoritellina imbellica n. sp., holotype × 6, p. 913.
Fig. 8.—Cyclopecten compitum n.sp., holotype × 20, p. 909.
Figs. 10, 11, 12.—Chattonia animula n. gen. n. sp., holotype and paratype × 6, p. 909.
Fig. 13.—Pholadidea increnata n. sp., holotype × 2, p. 914.
Figs. 14, 15.—Limopsis parma n. sp., holotype × 1.5, p. 908.

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Figs. 16, 17.—Ostrea (Gigantostrea) wollastoni Finlay. × .6, p. 908.

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Figs. 18, 21.—Glycymeris thomsoni n. sp., holotype × 1, p. 907.
Figs. 19, 20.—Myadora delta n. sp., holotype × 3, p. 914.

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Figs. 22, 24.—Venericardia caelebs n. sp., holotype × 1.2, p. 911.
Figs. 25, 26, 27.—Venericardia (Pleuromeris) prolutea n. sp., holotype and paratype × 5.5, p. 911.
Figs. 23, 28, 30.—Venericardia christiei n. sp., holotype and paratype × 1.2, p. 910.
Figs. 29, 31.—Venericardia pseutella n. sp., holotype × 3.3, p. 910.

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Figs. 32, 33, 34.—Gonimyrtea bucculenta n. sp., holotype × 4.3, p. 912.
Figs. 35, 36, 37.—Eulopia (Notomyrtea) staminifera n. sp., holotype and paratype × 5.4, p. 911.
Figs. 38, 39, 40.—Dosinia (Raina) sodalis n. sp., holotype × 1, p. 913.
Figs. 41, 42.—Dosinia (Raina) imperiosus n. sp., holotype × 1, p. 914.

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Figs. 43, 45, 46.—Elachorbis duplicarina n. sp., holotype × 13, p. 915.
Fig. 44.—Antisolarium vixincisum n. sp., holotype × 9.5, p. 915.
Figs. 47, 49.—Zeacolpus chattonensis n. sp., paratype × 1.2, holotype × 2.4, p. 916.
Fig. 48.—Pyrazus sutherlandi n. sp., holotype × 1-2, p. 917.
Figs. 50, 51.—Maoricrypta salebrosa n. sp., holotype × 1.2, p. 918.

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Figs. 52, 53, 57, 61.—Turbonilla (Strioturbonilla) chattonensis n. sp., holotype and paratype × 10, p. 920.
Fig. 54.—Syrnola wallacei n. sp., holotype × 10, p. 919.
Fig. 55.—Syrnola aclyformis n. sp., holotype × 10, p. 920.
Fig. 56.—Erato marshalli n. sp., holotype × 12, p. 922.
Figs. 58, 59.—Sigapatella mapalia n. sp., holotype × 5, p. 918.
Fig. 60.—Odostomia alexanderi n. sp., holotype × 7, p. 919.
Fig. 62.—Polinices blaesus n. sp. holotype × 1.2, p. 919.
Fig. 63.—Zefallacia chattonensis n. sp., holotype × 1.2, p. 917.

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Fig. 64.—Ringicula castigata n. sp., holotype × 20, p. 925.
Figs. 65, 68.—Xymenella inambig n. sp.,holotype × 7, p. 921.
Fig.66.—Acteon chattonesis n. sp., holotype × 8, p. 925.
Fig.67.—Proximitra incisula n. sp., holotype × 3, p. 920.
Fig.69.—Acuminia transitorsa n sp, holotype × 2, p. 924.
Fig.70.—Acuminia sutern n. sp., holotype × 3.7, p. 925.
Fig.71.—Acustrotoma inaequabilis n. sp., holotype × 1.8 p. 922.
Fig.72.—Austrotoma toreuma n. sp. holotype × 1.8 p. 921.
Fig.73.—Baryspira electa n. sp., holotype × 1.8, p.921.
Fig.74.—Austrodrtillia cinctuta n. sp., holotype × 6, p. 922.
Fig.75.—Phenatoma (cryptomella)crassispiralis n. sp., holotype × 6., p. 924.

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J. Allan Thomson
Born 1881—died 1928

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