REFERENCE TO PLATES, VOL. XVIII. 353 



90. Synap-terpes coronatus Pf r. Specimen 229 



91. Synapterpes vesperus Jouss. Mem. Zool. Soc. Fr.. . 234 



92. 93. Synapterpes incertus Mouss. Novit. Conch 231 



94. Synapterpes incertus Mouss. Specimen 231 



95, 96. Synapterpes auratus aratus Pils. Type 232 



97, 98. Synapterpes albobalteatus Dkr. Jahrb 233 



99. Neobeliscus calcarius Born. Uterine young 280 



100. Obelis-cus obeliscus Moric. Uterine young 243, 246 



102. Obeliscus euneus Pfr. Uterine young 251, 253 



103. Obeliscus terebraster Lm. Uterine young 258, 265 



PLATE 38. RHODEA. 



1-6. Rhodea calif ornica Pfr. Specimens 235 



7. Rhodea gereti Jouss. Bull. Soc. Philom 236 



8. Rhodea equatorensis Jouss. Bull. Soc. Philom 239 



9. Rhodea crosseana Da C. Proc. Malac. Soc 237 



10. Rhodea calif ornica Pfr. Conch. Icon 235 



11, 12. Rhodea wallisiana Dohrn. Jahrb 236 



13. Rhodea aequatoria Da C. Proc. Malac. Soc 239 



14, 15. Rhodea wallisiana Dohrn. Journ. de Conch 236 



16. Rhodea cousini Jouss. Bull. Soc. Philom 238 



17-19. Rhodea gigantea Mouss. J. de Conch 237 



PLATE 39. SUBULINA. 



20-22. Subulina stolli Marts. Biologia 227 



23-25. Subulina porrecta Marts. Biologia 226 



26, 27. Subulina cylindrella Morel. Moll. Mex 226 



28, 29. Subulina octona Brug. S. Domingo City 222 



30-32. Subulina octona Brug. Porto Cabello 222 



33. Subulina octona Brug. Morant Bay 222 



34. Subulina octona Brug. St. Barts 222 



35. Subulina octona Brug. Izamal 222 



36. Subulina strebeli Marts. ( octona). Beitrag. Mex. 224 



37. Subulina octona Brug. Sans Souci 222 



38. Pseudosubulina salvini Marts. Biologia Vol. XIX 



39. Subulina octona Brug. W. M. Gabb, del 224 



40. Subulina trochlea (= octona). Conch. Cab 224 



PLATE 40. 



1. Obeliscus salleanus Rve. Conch. Icon 269 



2, 3. Obeliscus salleanus Rve. Specimens 269 



4. Obeliscus salleanus disparilis Pils. Type 270 



5. Obeliscus hasta Pfr. Porto Rico spec 272 



