EEFERENCE TO PLATES, VOL. XVIII. 349 



FIGURE PAGB 



38. Opeas recisum Morel. Journ. de Conch 144 



39. Opeas oparanuni Pfr. Gambier Is. spec 186 



40. 41. Opeas gracile Hutt. New Caledonia 129 



42. Subulina seabrai Nob. Annaes, etc 84 



43. Opeas welwitschi Nob. Annaes, etc 145 



PLATE 25. PSEUDOPEAS. 







1-3. Pseudopeas saxatile Morel. Specimen 115 



4. Pseudopeas saxatile Morel. J. de Conch 115 



5-7. Pseudopeas plebeiurn Morel. Specimen 116 



8. Pseudopeas plebeium Morel. J. de Conch 116 



9, 10. Pseudopeas scalariforme Putz. Soc. Roy. Mai. Belg. 118 



11, 12. Pseudopeas isseli Jick. Nova Acta 118 



13. Pseudopeas pulchellum Putz. Soc. Belg 118 



14. Pseudopeas pusillum Morel. Journ. de Conch 119 



15, 16. Pseudopeas pusillum Morel. Specimen 119 



17. Pseudopeas interioris Tate. Horn exped 120 



18. Pseudopeas interioris Tate. Specimen 120 



PLATE 26. 



19. Zootecus contiguus Rve. Specimen 105 



20. Zoo'tecus teres (= = contiguus) . Conch. Cab 105 



21. Zootecus insularis Ehr. Specimen 106 



22. Zootecus insularis Ehr. Lake Stephanie 108 



23. Zootecus i. perticus Bs. Conch. Cab 113 



24. 25. Zootecus i. agrensis Kurr. Novit. Conch Ill 



26-28. Zootecus i. pullus Gray. Specimens 110 



29. Zootecus i. estellus Bs. Conch. Indica 112 



30. Zootecus i. adenensis Pfr. Conch. Cab Ill 



31. Zootecus i. polygyratus Rve. Conch. Icon 113 



32. Zootecus i. chion Pfr. Specimen 112 



33. Zootecus i. subdiaphanus King. Specimen 109 



34. Obeliscella bentia? M. & P. P. Mai. Soc 102 



35. Obeliscella lucidissima Pal. Ann. Genov 101 



36. 37. Obeliscella lucidissima Pal. Specimen 101 



38, 39. Obeliscella subvaricosa Marts. D. Ostaf r 104 



40, 41. Obeliscella retteri Kob. Rossm. Icon 104 



PLATE 27. AMERICAN OPEAS. 



40. Opeas beckianum simoni Jouss. Mem. France 191 



41. Opeas beckianum carinulatum Jouss. Mem. France. 192 



42. 43. Opeas beckianum Pfr. Caracas spec 189 



44-46. Opeas beckianum Pfr. Polvon, Nicaragua 189 



47. Opeas mimosarum Orb. Voy. Am. Merid 210 



