46 EDGAR A. SMITH. 



Sowerby ^, is sculptured very similarly, and should, I think, 

 be removed to the genus Cerithiopsis. It is, however, a 

 little more slender, of a light brown colour, more openly 

 latticed, has a different columellar fold, and is distinctly 

 spirally striated between the three principal spiral rows of 

 granules. 



Turritella bacillum Kiener. 

 Turritella bacillum Kiener: Martens, ' Tiefsee-Exped.,' 

 p. 44. 



Its occurrence in South Africa confirmed. 



Turritella declivis Adams and Reeve, var. 

 Turritella declivis Adams 2bn^ Reeve, var.: Martens, 

 ' Tiefsee-Exped.,' p. 44, PL IV, %. 10. 

 Hab. — Simon's Bay, 38 fathoms. 



Turritella punctulata Soirerhy. 



Turritella punctulata Sou-erhij : Martens, 'Tiefsee- 

 Exped,,' p. 43, PI. IV, figs. 9, 9 a, I. 



Hab. — Francis Bay, Cape Agulhas, Algoa Bay, 44-55 

 fathoms. 



■^Littorina scab r a {Linn.). 



Littorina scabra Linn.: Reeve, 'Conch. Icon.,' vol. x, 

 figs. 21 a-c. 



The following so-called species, viz. L. angulifera 

 Lamarcli, intermedia Philij^pi, ahenea Reeve, and 

 newcombi Reeve, appear to pass one into the other and 

 also into L. scabra, and without a very deep study of the 

 group it appears hopeless to attempt to give any definite 

 opinion upon the specific value of any of them. They have 

 already been united by Tryon as forms of L. scabra. 

 L. ahenea, newcombi and intermedia are quoted in the 

 'Marine Shells of S. A.' as distinct species. Specimens 

 have been examined which seem to be inseparable from the 

 L. scabra as determined by Reeve, Weinkauff, etc. 



^ 'Conch. Icon.,' vol. xv, fig. 127. Copied by Tryon, 'Man. Conch.,' 

 vol. ix, pi. XXX, fig. 9. 



