REFERENCE TO PLATES. 437 



IGTTRB. PAGE. 



97, 98. Xenopbora Caribaea, Petit. Ibid., t. 65, f. 1, .162 



99, 100. Xenophora Lamberti, Souverbie. Ibid., t. 44, f. 1, 162 



1, 2. Xenophora Solaris, Linn. Reeve, Phorus, f. 5 a, 6, 162 



YERMETKLE. 

 PLATE 48. 



5. Vermetus gigas, Quoy. Yoy. Astrolabe, t. 67, f. 13, . 163 



6. Yermetus triqueter, Bivona. Embryo. S, velum; 



6r., branehue; e, eye; /, cephalic tentacle; p, an- 

 terior portion of foot (Lacaze-Duthiers). Fischer's 

 Manuel, pt. viii, p. 690, f. 460, *163 



7. Yermetus triqueter, Bivona. Animal : m, columellar 



muscle ; , cephalic tentacle ; t p, pedal tentacles ; 

 op, operculum ; o, ova-capsules, attached in the 

 interior of the shell (Lacaze-Duthiers). Fischer's 

 Manuel, pt. viii, 691, f. 461, 163 



8. Yermetus maximus, Sowb. Operculum. Ibid., viii, 



692, f. 463, . . 163 



9. 10. Siliquaria Bernardii, Morel. Operculum, enlarged. 



Ibid., viii, 693, f. 464, 1G3 



11. Yermetus varians, Orb., var. Carpenteri. Section, 



showing internal lamellae. Zool. Proc., 317, f. 4, 

 1856, .... 170 



12. Yermetus renisectus, Carp. (= Adansoni). Ibid., f. 5, 169 



13. Yermetus Nerinoides, Carp. Ibid., f. 6, . . . 171 



14. Yermetus octosectus, Carp. Ibid., f. 8, . . .171 



15. Yermetus cereus, Carp. Ibid., f. 7, .... 172 



16. Yermetus macrophragma, Carp. Ibid , f. 1, . .173 



17. Yermetus cochlidium, Carp. Ibid., f. 2, . . . 173 



18. Yermetus flavescens, Carp. Ibid., f. 3, . . . 174 



19. Yermetus Cuvieri, Risso. Risso, Hist. Nat. Eur. 



Merid.,iv, f. 16, 183 



PLATE 49. 



20. Yermetus lumbricalis, Roissy (= Adansonii). Chenu, 



Illust. Conch., i, t. 5, f. 1, 169 



21. Yermetus lumbricalis, Roissy (= Lamarckii, Morch). 



Ibid., t. 5, f. 1 c, . 169 



22. 23. Yermetus varians, d'Orb. Yoy. Amer. Merid., t. 



54, f. 7, 8, 170 



24. Yermetus conicus, Dillw. Gunltieri, t. 10, f. Z, . .170 

 25,26. Yermetus glomeratus (= renisectus, Mo'rch). Chenu, 



Illust. Conch., t. 2, f. 2 a, d, . . . . .170 

 27. Yermetus contortus, Carp. Specimen, . . .171 



