498 REFERENCE TO PLATES. 



FIGURE. PAGE. 



20. Ethalia striolata var. trilobata Sowb. Conch. Icon., f. 20, 460 



21. Ethalia striolata Ad. Conch. Icon., f. 13, . . . 460 



22. 23. Umbonium moniliferum Lam. Coq. Viv., . . 456 

 24, 25. Umbonium vestiarium, var. depressa Ad. Conch. 



Icon., 461 



26, 27, 28. Umbonium adamsi Dkr. . . . 453 



29, 30, 31. Umbonium moniliferum Lam. . . . 456 



32, 33. Ethalia anguliferus Phil. (=zelandica). Conchyl. Cab., 459 



Plate 59. 



34, 35. Umbonium costatum Val. Conch. Icon., f. 4, . . 454 



36. Umbonium callosum Sowb. Thes. Conch., f. 27, . 451 



37. Ethalin montrouzieri Souv. Journ. de Conch. 1860, t. 2, 



f. 11, 459 



38. 39. Ethalia guamense Q. Conch. Icon., f. 18, . . 458 



40. Ethalia? lirata Smith. P. Z. S. 1871, t. 75, f. 23, . . 461 



41. Ethalia? plicata Smith. Ibid., t. 75, f. 24, . . .461 



42. Ethalia? Candida Ad. Conch. Icon., f. 14, . . . 461 



43. 44. Ethalia? sobrina Ad. Ibid., f. 19, . . . .461 

 45, 46. Umbonium conicum Ad. Voy. Samarang, t. ll,f. 22, 452 

 47. Umbonium sagittatum Hinds. Thes. Conch., f. 9, . . 452 

 48-50. Margarita vorticifera Dall. Proc. Cal. Acad, v, t. 2, 



f.4, 288 



51, 52. Minolia bicarinata Ad. Voy. Samarang, t. 11, f. 11, 265 

 53, 54. Ethalia? brazieri Angas. P. Z. S, 1877, t. 5, f. 17, . 462 

 55. Ethalia? polita Ad. Conch. Icon., f. 17, . . . 461 

 56-58. Isanda coronata Ad. Zool. ' Alert,' t. 5, f. P, . . 463 

 '59-63. Ethalia pulchella Ad Journ. Linn. Soc. xx, t. 15, f. 



3, - 460 



64, 65. Monilea lifiiana Fischer. Zool. ' Alert, ' t. 6, f. B, . 252 

 66. Ethalia zelandica Hombr. Voy. Astrol. & Zelee, t. 14, f. 



5, 459 



Plate 60. 

 1, 2. Calliostoma apicinum Dall. ' Blake ' Moll., t. 24, f. 3, 379 

 3, 4. Gibbula ochotensis Midd. Conchyl. Cab., t. 34, f. 1, . 237 

 5, 6. Umbonium bairdii Dall. 'Blake' Moll., t. 21. f. 6, . 457 

 7, 8. Eutrochus sayana Dall. Ibid., t. 22, f. 10, 11, . . 407 

 9. Calliostoma quadrisulcatum Phil. Conchyl. Cab., t. 38, f. 8, 470 

 10, 11. Eutrochus asperrimum Dall, var. dentiferum. 'Blake' 



Gasterop., t. 23, f. 7, 8, 411 



12, 13. Omphalius cooksoni Smith. P. Z. S. 1877, t. 11, f. 7, 183 

 14, (5. Basilissa costulata, var. depressa Dall. 'Blake' 



Gasterop., t. 23, f. 4, 428 



16-18. Minolia canaliculata Ang. P. Z. S. 1871, t. 75, f. 28, 267 



(These three figures are not numbered on the plate.) 

 19, 20. Eutrochus sericifilum Dall. 'Blake' Gasterop., t. 24, 



f. 1, 412 



