288 
Tafel 33. 
1. 2. Cerifchium tenkatei Schepm. — 3. 4. C. quadrasi Kob. — 5. 6. C. balteatum 
A. Ad. — 7. 8. C. raricostatum A. Ad. — 9. C. mindoroense Kob. — 10. C. costatum 
Wood. — 11. C. ambiguum C. B. Ad. — 12. 13. C. tenue Sow. — 14. 15. C. lafondi 
Mich. — 16. 17. C. scalariforme var. 
Tafel 34. 
1. 2. Cerithium möllendorffi Kob. — 3. C. subulatum Lam. — 4. 5. C. sandwicense 
Rve. — 6. C. filosum Exe. — 7. C. inflatum Quoy. — 8. C. aduncum Rve. — 9. C. reple- 
tulum Bayle (obesum Rve.). — 10. C. planum Rve. — 11. C. planiusculum Rve. — 
12, 13. C. coronatum Rve. — 14. 15. C. invaginatum Rve. — 16. 17. C. balteatum Rve. 
Tafel 35. 
1. Cerithium gentile Bayle. — 2. 3. C. alternatum Sow. — 4. 5. C. atratum Born. — 
6. 7. C. subatratum Kob. — 8. 9. C. algicola C. B. Ad. — 10. C. salebrosum Sow. — 
11. C. tessellatum Sow. — - 12. C. adenense Rve. — 13. C. variabile Rve. — 14 C. yer- 
buryi Smith. — 15. C. proditum Bayle (fusiforme Sow.). — 16. C. asperum Pease. — 
17. C. crassilabrura Rve, — 18. 19. C. maculosum Migh. 
Tafel 36. 
1. Cerithium metula Lov, — 2, 3. C. insigne Jeffr. — 4. 5. C. obeliscoides JefFr. — 
6. 7. C. cylindratum Wats. — 8. 9. C amblyterum Wats. — 10. C. procerum Jeffr — 
11' C. whiteavesi Yerr. — 12. 13' C. cinerascens Pali. — 14. 15. C. conicum Blainv. — 
16. 17. C. decoratum Mtrs. — 18. 19. C. peloritarum Cantr. 
Tafel 37. 
1. Cerithium menkei Desh. — 2. 3. C. maillardi Crosse. — 4. 5. C. asperum Desh. — 
6. C. scabridum Rve. — 7. C. novae liiberniae Sow. — 8. 9. C. rostratum Sow, — 
10 11. C. munitum Sow, — 12. 13. C. interstriatum Sow. 
Tafel 38. 
1. Cerithium rubus Rve. — 2' 3. C. tenellum Sow. — 4, C. mitriforme Sow. — 
5. 6. C. eximium Sow. — 7. C. gemma Sow. ■— 8. C. sordidulum Gld. — 9. C. rarimacu- 
latum Sow. — 10. 11. C. nassoide Sow. — 12. C. lentiginosum Sow. — 13. C. nivosum Sow. 
Tafel 39. 
1. 2. Cerithium coralium Dufr. — 3—6, C. eburneum Brug. — 7—10. C. zebrum 
Kien, — 11. C. alboliratum Carp. — 12. 13. C. granosum Kien. — 14. C. fucatum Pse. — 
15. C. californiae Sow. — 16. C, janthinulum Kob, — 17. C. rissoide Sow. — 18. C. uni- 
lineatum Pease. — 19. C. caelatum Rve. — 20. C. egenulum Kob. 
