SOUTH AFRICAN MARINE MOLLIJSCA. 51 



"^ Niso interrupt a 8oiverhy. 



Niso interrupta Soicerhy : Reeve's ' Conch. Icon./ vol. 

 XV, fio-. 8 a,h; Smith, 'J. of Make.,' vol. xi, p. 24. 

 Hab.— Port Alfred. 



Turbonilla hofraani Angus. 



Turbonilla hofmani Angas (1877) : Smith, 'J. of 

 Malac.,' vol. xi, p. 24. 



T. Candida A. Adams : Sowerby, 'Marine Shells of South 

 Africa,' p. 26 ; Smith, ' Proc. Malac. Soc.,' vol. v, p. 386. 



The shells formerly considered to belong to T. Candida 

 are certainly distinct from that species. They appear to be 

 inseparable from T. hofmani. The name lactea of Krauss 

 (1848), afterwards changed by Clessin (1900) to kraussi, 

 Avas preoccupied b}' Linnaeus for a northern species. 



* Turbonilla decora ISmifh. 



Turbonilla decora Smitli: 'J. of Malac.,' vol xi, p. 36, 

 PI. Ill, fig. 5. 



Hab.— Port Alfred. 



* Turbonilla gemmula Smitli. 

 Turbonilla gemmula Smith: 'J. of Malac.,' vol. xi, 

 p. 36, PI. Ill, fig. 4. 

 Hab.— Port Alfred. 



■^ Mormula rissoiua A. Adams. PI. VIII, fig. 2. 



Mormula rissoina A. Adams: ' Journ. Linn. Soc.,' 1863, 

 vol, vii, p. 1 ; Smith, 'J. of Malac.,' vol. xi, p. 24. 

 Hab.— Port Alfred. 



■^ b]lusa natalensis n. sp. PI. A'lll, fig. 3. 



Testa elongata, subulata, ad apicem obtusa, alba, polita ; 

 anfractus 8, superiores duo convexi, laeves, ca^teri fere plani, 

 superne tenuiter oblique striati, sutura fere canaliculata 



