NATICA.— Plate V. (Thes pi. 458.) 



Fig. 



53. RAVIDA, sp. 81, Souleyet, Voy. de la Bonite. — St. Helena, 



West Columbia. 



54. PROBLEMATiCA, sp. 8, Reeve, Con. Icon. 31. — intermedia, 



Keel, not Phil. — China. 



55. JuKESii, sp. 80, Reeve, Con. Icon. 84. — eandidissima, 



Keel, not Le Gruillou. — North Australia. 



56. DUBiA, sp. 62, Reduz, Proc. Zool. Soc. 1843, p. 209. — 



Chili. 



57. ALBUMEN, sp. 15, Lamarck, Anim. s. vert. — Isl. Samar, 



Philippines. 



58. PHYTELEPAS, sp. 69, Reeve, Con. Icon. 42. — Australia. 



59. SEMisuLCATA, sp. 87, Gray, Zool. Beech Voy. — alba, 



Potiez. — Porto Kico. 



60. LEUCOPH^A, sp. 76, Reeve, Con. Icon. 51. — Australia. 



61. RAPULUM, sp. 42, Reeve, Con. Icon. 47. — Payta, Peru. 



62 (108, 109, 151). MAROCHiENSis, sp. 38, Gmelin, Linn. Syst. 

 Nat. — maroccana, Chem., var. 67 ; unifasciata, Lamk., 

 var. 108, 109 ; Prichardi, Forbes; Chemnitzii, Pffr., 

 var. f. 151 ; lurida, Philippi. — Panama, Gruiana, West 

 Indies, Morocco, Mediterranean. 



63, 64. fibula, Keeve. See Incei, f. 27. 



65, 66. oRiENTALis, sp. 14, Gmelin, Linn. Syst. Nat. — 

 eburna, Desh. — Singapore. 



67. SEPTBNTRioNALis, sp. 117, BecL Cat. Moll. Greenland. 



