336 HENRY CLIFDEN BUBNXJP. 



umbilicata, microscopice longitudinaliter striatula; anfrac- 

 tibus 5, ventricosulis, angustis ; apertura lunari, peristo- 

 mate tenui, bilamellata, lamella vel plica altera niarginem 

 apud coluniellarem in medio valde intrantem, altera basali, 

 conspicua, dentiformi. 



"Alt. 0-84, diam. 1-48 mm. 



"Hab.— Dargle, Natal; Edendale Falls, June 29th, 1907 

 (H. C. Burnup)." 



The position of the inrunning fold first mentioned in the 

 description would be better described as on the parietal wall 

 than near the columellar margin. In the figure as reproduced 

 the sculpture is represented as being much coarser than it 

 really is. 



Further specimens, collected in the Tongaat Beach Bush 

 (Natal), since the species was described, exhibit, in some 

 instances, such contortion of the parietal fold as to give it 

 the appearance of being bifid. Two other specimens in my 

 collection, one from Enon Bush, near Eichmond, and one fi'om 

 Hilton Road (both in Natal), though rather above average size, 

 have such weak development of the plaits as to suggest a dis- 

 tinct variety. Each was the only example of the genus found 

 in its locality. 



Since writing the above I have also found a single specimen 

 of this species at Ntimbankulu, Mid-Illovo (Natal) . 



I also give an additional figure showing the basal view of 

 the shell (fig. 18) for comparison with the similar view of 

 trilamellaris in Melvill and Ponsonby's paper. 



Endodonta [Endodonta (Afrodonta)] trilamellaris 



{Melr. & Pons.). 



Afrodonta trilamellaris Melv. & Pons., Ann. and Mag. Nat. Hist., 



vol. i (1908), p. 134.pl. 

 vii, figs. 7, 7a. 7b. 



" A. testa . . . niinuta, cornea, late umbilicata, plan- 

 orbula; anfractibus 4.^, ventricosulis, undique microscopice 

 longitudinaliter tenuistriatis; apertura lunari; peristomate 



