Species and Varieties of 'Pupa. 405 



8. Pupa griqualandica, M. & P. 



This species must be closely akin to P. hisulcata, Jick., 

 from Abyssinia, judging alone from description and figure, 

 for I have not been able to examine the type or authenticated 

 specimens of Jickeli's species. Mr. Ponsonby has, however, 

 very kindly examined for me the specimens in the British 

 Museum bearing that name, in conjunction with specimens 

 of griqualaadica, and, while finding them '' very similar," 

 pronounced them to be "at once separable,'^ basing the 

 separation apparently mainly upon the presence of " a large 

 prominent tooth on the outer lip'' oi hisulcata. This tooth or 

 plait, if not so large, is also present in griqualandica, though, 

 perhaps through being in sliadow, is not so conspicuous in 

 the figures chosen by Melvill and Ponsonby to illustrate their 

 species as in Jickeli^'s figure. No mention is made in Melvill 

 and Ponsonby's description of the two sulci on the outer lip 

 (corresponding with the labral plaits) to be discerned in 

 griqualandica as represented in the figure of hisulcata. On 

 the other hand, Jickeli does not record the presence of the 

 sixth, minute, internal basal plait "visible in some specimens," 

 which appears to me to be a constant character of griqua- 

 landica^ though it is easily overlooked owing to its extreme 

 smallness and internal position. The dimensions given by 

 Jickeli represent a considerably larger and comparatively 

 narrower shell than griqualandica^ but, as they do not corre- 

 spond with the proportions of his figure, one or other must 

 be wrong — so neither is reliable. If his figure actually repre- 

 sents a shell of 1| ram. in height, its width is 1*27 instead of 

 1 mm. as he states. 



The dimensions of the shells figured in Melvill and Pon- 

 sonby's paper are as follows : — 



Fig. 8. Height l-o2, width 0*89 mm. 



Fig. 9. „ 1-41, „ 0-83 „ 



The average of twenty-one specimens measured by me is : — 

 Height 1-53, width 0'87 mm., the largest being height 1*6, 

 width 0-99 mm. 



The following new localities may be added : — Edendale 

 Falls, near Maritzburg, and mouth of Tongaat River, Natal 

 coast. 



9. Pupa haploa, M. & P. 



10. Pupa intradentata, Burnup. 



1908. Pupa dysorata, M. & P., var. intradenta, Burnup, M. & P. Ann. 

 & Mag. Nat. Hist. ser. 8, vol. i. p. 73, pi. i. fig?. 5, 6. 



