PLATE XXVII. 



Fig. 9. Natica (Lunatia) presina, n. sp. . 



a, b. The shell, natural size. | e. The apex, enlarged. 



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Fig. 1. Natica philippinensis, n. sp. . . . . . .442 



a, b. The shell, natural size. | c. The apex, enlarged. 



Fig. 2. Natica atypha, n. sp. . . . . . • 438 



a, b. The shell, natural size. | c. The apex, enlarged. 



Fig. 3. Natica pseustes, n. sp. . . . . . . 444 



a, b. The shell, natural size. | c. The apex, enlarged. 



Fig. 4. Natica (Amauropsis) suturalis, n. sp. . . . ■ 455 



a, b. The shell, natural size. 



Fig. 5. Natica radiata, n. sp. . . • . ■ .436 



a, b. The shell, natural size. | c. The apex, enlarged. 



Fig. 6. Natica amphiala, n. sp. . . . . . . . 437 



a, b. The shell, natural size. | c. The apex, enlarged. 



Fig. 7. Natica leptalea, n. sp. . ■ . - . .441 



«, b. The shell, natural size. | c. The apex, enlarged. 



Fig. 8. Natica xantha, n. sp. . . . . • .445 



a, b. The shell, natural size. | c. The apex, enlarged. 



449 



Fig. 10. Natica far tilis, n. sp. . . . . . • 446 



a, b. The shell, natural size.. | c. The apex, enlarged. 



Fig. 11. Natica {A mauropsis) apora, u. sp. . . . . .454 



a, b. The shell, natural size. 



