PLATE II 



Fio. 1. VicUioccrithiuiit hoiici (Desiiayes). X 2. 



Fig. 2. Vicbtocerithium paraUeluin sp. nov. X 2. 



Fig. 3. Ccrithium adansoni Bruguiere, a youug individual. X IJ. 



Fig. 4. Cerithhim tuberosian Column.^. X 1^. 



Fig. 5. Cerithitiin (rquisplralc s]). nov. X 2. 



Fig. 6. Cerithium rctardatum sp. nov. X 2. 



Fig. 7. Cerithium hicarinatum inut. trispiralis luut. nov. X 2. 



Fig. 8. Cerithium hicarinatum Deshayes. X 2. 

 The figures are from ithotographs, retouched by the author. 



