SOUTH AFlirCAN ]\[AIUNE MOLLUSCA. 43 



*'J'rifora convexa Smitli. 



Trifora convexa Smith, 'J. of Malac./ vol. xi, p. 'M, 

 PI. Ill, fig-. 9. 



Hab.— Port Alfred. 



"^Trifora f usees c ens Smifli. 



Trifora fuscescens Smith, 'J. of Malac.,' vol. xi, ]). -jV, 

 PI. Ill, fig. 6. 



Hab.— Port Alfred. 



* T r i f o r a f u s c o m a c u 1 a t a Smith . 



Trifora f usconiacula ta Smith, 'J. of Malac.,' vol. xi, 

 p. 37, PI. Ill, fig-. 7. 

 Hab.— Port Alfred. 



^ Trifora cerea n. sp. PI. VII, figs. 11, 11 a. 



Testa subulata, Havescens, nitida; anfractus 14 (?), convexi, 

 costis spiralibus tuberculatis quatuor cincti, du.obus medianis 

 caeteris majoribus, inter costas oblique costulati, ultiraus costis 

 sex instructus, duobus inferioribus vix tuberculatis ; columella 

 supra arcuata, callo albo crassiusculo induta ; canalis brevis, 

 obliquus, recurvus, hand clausus ; labrum subpatuluui, extre- 

 uiitatibus costarum leviter dentatuni. 



Long-it. 10-5 mm., diam. 2'25. Apertura 1*25 longa. 



Hab. — Port Shepstone (Burnup). 



Of a uniform yellow wax colour, ornamented with four rows 

 of granules on each whorl, the lowest row being the smallest, 

 and the two central series rather more prominent than the 

 uppermost row. 



"^ Trifora shepstonensis n. sp. PI. YII, figs. 12, 12 a. 



Testa elongata, subulata, fuscescens; anfractus circiter 15, 

 plani, tricing-ulati, cingulis plus minus moniliformibus, mediani 

 cieteris minori, in sulcis liris longitudinalibus decussati, 



