REFERENCE TO PLATES. 429 



PLATE 30. 

 FIGURE. PAGE. 



1. Harttia Matthewi, Walcott. Bull. U. S. Geol. Surv., 



x, t. l,f, 3, . 109 



2. Crucibulum peziza, Gray. Dentition. Troschel, Gebiss 



Schneck., i, t. 13, f. 5, 102 



3. Calyptnea Chinensis, Dentition. Ibid., t. 13, f. 7, . 103 



4. Crepidula fornicata, Linn., Dentition. Ibid., t. 13, f. 9, 103 



5. Capulus Hungaricus, Linn., Dentition. Ibid., t. 13, f. 14, 105 



6. Hipponyxconicus, Schom., Dentition. Ibid., t. 13, f. 15, 108 



7. Calyptraea Chinensis, Linn. Forbes and Hanley, Brit. 



Moll., t. BB, f. 8, 103, . . . . * . .119 



8. Xenophora trochiformis, Born. Troschel, Gebiss der 



Schnecken, i, t. IB, f. 7, 156 



9. Yermetus gigas, Qtioy. Ibid , t. 13, f. 4, . . 163 



10. Vermetus gigas. Part of jaw. Ibid., t. 13, f. 2, . .163 



11. Turritella ungulina, Linn. Ibid., t. 12, f. 11, . .192 



12. Turritella lactea, Miller. Ibid., t. 12, f. 13, . . 192 



PLATE 31. 



13-16. Crucibulum scutellatum,Gray. Sowb. Thes. Conch., 



t. 447, f. 1-4, .... ... 117 



17. Crucibulum imbricatum,Brod. (=scutellatum). Conch. 



Icon., f. 9a, 117 



18,19. Crucibulum corrugatum, Carp. ( scutellatura). 



Thes Conch., t. 448, f. 33, 36, 117 



20. Crucibulum umbrella, Desh. (= scutellatum). Conch. 



Icon., f. 0, . 117 



21,22. Crucibulum concameratum, Rve. (= scutellatum). 



Ibid.,f. 23, .117 



23. Crucibulum serratum, Brod. (= scutellatum). Trans. 



Zool. Soc.,i, t. 28, f. 1, 117 



24. Crucibulum pectinatum, Carp. (= scutellatum). Conch. 



Icon., f. 11 6, 117 



PLATE 32. 



25. Crucibulum trigonale, Ad. and Rve. (= scutellatum, 



var.). Conch. Icon., f. 36, 117 



26. Crucibulum ferrugineum, Reeve (= scutellatum). Ibid., 



f. 5a, 117 



27. 28. Crucibulum lignaria. Brod. (= scutellatum). Trans. 



Zool. Soc., i, t. 27, f. 8, . . 117 



29. Crucibulum tenue, Brod. (= scutellatum). Ibid., t. 



27, f. 9, 117 



