402 Mr. IT. C. Burnup on South- African 



1 am particularly indebted to Mr. Ponsonby for the patient 

 care with wiiich he, during a recent visit to South Africa, 

 discussed tiie Survey with me, and encouraged me to publish 

 tlie emendnients and additions to be found in the present 

 revision. 



Although Mr. Woodward's arguments in favour of the 

 supercession of the name Pupa, Diap., by Jarniiiia, Risso *, 

 seem to me quite convincing, I liave in the following 

 notes and descriptions, for the sake of convenience in 

 reference, adhered as far as possible to Melvill and Ponsonby's 

 nomenclature. 



1. Pupa crawfordiana (M. & P.). 

 (PI. X. figs. 1, 2.) 



Melvill and Ponsonby say of this species : " Allied to 

 PAoyardiy Bens."; but it is easily distinguishable by its 

 stouter form, less ventricose whorls, shallower sutures, more 

 regularly conical spire, less mammillated apex, rather 

 smoother surface, less effuse peristome, and by the absence of 

 the seventh, minute, plait to be seen, in P. layardi, at the 

 junction of the parietal wall with the columella. The arrange- 

 ment of the other peristomatal processes is practically iden- 

 tical in both species. 



The original figure is defective in form and deficient in 

 detail, so I herewith offer new figures drawn from the co-type 

 in Mr. Ponsonby's collection, kindly lent to me for the 

 purpose. Mr. Ponsonby has compared my figures with the 

 type in the British Museum, and finds that they correspond 

 accurately^ except that the callus in the type is not chipped 

 as in the co-type, so verifying that part of the original 

 description recording the peristome as continuous. Of the 

 co-type it would be more accurate to say that the ends of the 

 peristome converge and are connected by a callus. A com- 

 parison of fig. 2 with fig. 4 well illustrates the difference in 

 profuseness of peristome. 



Dimensions of co-type : — Alt. 6'96, lat. 3*38 mm. 



2. Pupa cri/ptopJax, M. & P. 



The specimen figured in the Survey measures as follows : — 

 Height 3-36, width 1-95 mm. 



The dimensions of other specimens measured are: — 

 Height 3'76, width 2'15 mm. 



„ 3-36, „ 2T5 „ 



„ 3-12, „ 2-00 „ 



* B. B. Woodward, Journ. of Couch, vol. x. (1903) pp. 358-361, 



