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Show 1870.] MR. H. ADAMS ON NEW EXOTIC SHELLS. 795 HARGRAVESIA POLITA, H. Ad. (Plate XLVIII. fig. 22.) H. testa imperforata, ovato-acuminata, solidula, leevigata, polita, flavo-fusca; spira convexo-conica, apice acutiusculo, sutura callosa, leviter impressa ; anfr. 6, convexiusculis, ultimo basi at-tenuato, spiram eequante; apertura circulari, sursum speclante, callo parietali linguiformi, subobliquo, margine dextro approximate munita; perist. paulum incrassato, ad parietem aperturalem adnato. Long. 9\, diam. 6 mill., apert. diam. 3 mill. Hab. Solomon Islands (Mr. Hargraves). PACHYCHEILUS JANSONI, H. Ad. P. testa elongato-fusiformi, solidiuscula, sub lente minutissime spiraliter undulato-striata, epidermide nigro-fusca induta; spira subconvexo-turrita, apice eroso, sutura vix impressa; anfr. 6, subplanatis; apertura acuminato-ovali, testce fere dimidium eequante, postice angulata, antice paulum producta, intus livido-fusca; columella arcuata, albida; callo parietali tenui; labro crassiusculo. Long. 36, lat. 15 mill. Ar7aft. Province of Chontales, Nicaragua (Mr. E. M. Janson), This species is related to P. turati, Villa; but the aperture is longer, and the whorls of the spine are nearly flat instead of being convex as in that species. DESCRIPTION OF PLATE XLVIII. Fig. 1. Mitra (Cancilla) antonim, p. 788. 2. Corbula erythrceensis, p. 789. 3. Eucharis anyulata, p. 789. 4. Necera (Cardiomya) pulchella, p. 789. 5. Tellina (Peronceoderma) simplex, p. 789. 6. Tellina (Peroncea) pura, p. 789. 7. Tellina (Peroncea) scitula, p. 790. 8. Tellina (Peroncea) erythreeensis, p. 790. 9. Tellina (Peroncea) triradiata, p. 790. 10. Tellina (Arcopagia) isseli, p. 790. 11. Tellina (Arcopagia) savignyi, p. 790. 12. Coralliophaga striolata, p. 791. 13. Lucina fieldingi, p. 791. 14. Lucina concinna, p. 791. 15. Lucina (Cyclas) macandrece, p. 791. 16. Mysia tumida, p. 791. 17. Crenella compta, p. 792. 18. Radula tenuis, p. 793. 19. Radula (Limatula) pusilla, p. 793. 20, 20 a, 20 b. Phaneta everetti, p. 794. 21, 21 a. Macrochlamys cutteri, p. 794. 22. Hargravesia polita, p. 795. |