Figs. 1, 2, 3.—Monalaria concinna (Sut.). Type. Figs. 4, 9.—Struthiolaria subspinosa n. sp. Type. Figs. 5, 6, 7.—Monalaria minor (Marshall). Figs. 8, 13.—Struthiolaria calcar Hutton's plastotype. Fig. 10.—Struthiolaria subspinosa n. sp. Target Gully. Fig. 11.—Struthiolaria calcar Hutton. Neotype. Figs. 12, 14.—Struthiolaria spinosa Hector. Neotype.
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