480 K. J. Bash — Mollusra of Cape Hatteras. 



GASTROPODA— cow^mrted. 

 11. Cnicibiiliim striatum (Say) H. and 



A. Ad. 

 w. Cingula cariiiata Migii. 

 n. Aclis tenuis V. 

 Ethalia multistriata V. 

 Ccdliostoma Bairdii V. & S. 

 Cocculina reticulata V. 

 71. Eulimella Sniithii V. 



LAMELLIBRANCHIATA— co7ii. 



n. Modiolaria nigra (Gray) Loven. 

 M. Modiolaria corrugata (Stinip.) 

 Morch. 



Crenella decussata (Mont.) Macg, 



Amussium, sp. nov. 



EXPLANATION OF PLATE XLV. 



Figure 1. — Mangilia oxytata, sp. nov. (p. 460), x 10. 



Figure 2. — Mangilia psila, sp. nov. (p. 455), x 5. 



Figure 3. — Mangilia melanitica Dall., var. oxia, nov. (p. 459), x 10. 



Figure 3a. — The same. Nuclear whorls, x 30. 



Figure 4. — Mangilia ephamilla, sp. nov. (p. 457), x 5. 



Figure 4a. — The same. Nuclear whorls, x 25. 



Figure 5. — *Mangilia {?) glypta, sp. nov. (p. 461), x 10. 



Figure 5a. — The same. Nuclear whorls, x 15. 



Figure 6. — Triforis turris-thomce (D'Orb.) Dall (p. 463), x 10. 



Figure 7. — Skenea trilix, sp. nov. (p. 464), x 10. 



Figure 7a. — The same. View of the base, x 10. 



Figure 8. — Scalaria teres, sp. nov. (p. 465), x 6. 



Figure 9. — Odostomia engonia, var. teres, nov. (p. 467), x 6. 



Figure 10. — Niso ceglees, sp. nov. (p. 465), x 5, 



Figure 10a. — The same. Nuclear whorls, x 30. 



Figure 11. — Volvula minuta, sp. nov. (p. 469), x 20. 



Figure 12. — Volvula oxytata, sp. nov. (p. 468), x 10. 



Figure l^.— Bulla Candei D'Orb. (p. 468), x 10. 



Figure 14. — Cylichna hiplicata (Lea) (p. 467), x 10. 



Figure 15. — Cylichna ccelata, sp. nov. (p. 468), x 6. The lines denoting the sculpture 



are much too heavy. 

 Figure 16.—Philine Sagra (D'Orb). (p. 467), x 10. 

 Figure 16a. — The same. To show sculpture, x 50. 

 Figure 17. — Actoeon puncto-striatus (Adams) Stimp. (p. 467), x 10. 

 Figure 18. — Dentalium leptum, sp. nov. (p. 470), x 2|. 

 Figure 18a. — The same. Dorsal view of posterior end to show iiotcii, x 10. 

 Figure 19. — Cadulus Carolinensis, sp. nov. (p. 471), x 8. 

 Figure 20. — Cadidus incisiis, sp. nov. (p. 471), x 4. 

 Figure 21. — Neara cosiata, sp. nov. (p. 472), x JO. 



Figures 2, 3a, 4«, 5a, 8, 9, 15, 16a, 20 are camera-lucida drawings b}' the author; 

 the others are drawn by Mr. J. H. Emerton, from nature. 



* The specimen figured has an imperfect nucleus aud is destitute of the epidermis 

 found on perfectly fresh specimens. 



