nev) Molluscafrom South Africa. Ill 



19. Planorhis Bowkeri, sp. n. (PI. III. fig. 19.) 



P. testa pallide cinerea, altiuscula, parum nitente, sublaevigata ; 

 anfractibus quatuor, deplanatis, rapide accrescentibus, disco supe- 

 riore et infcriore aeque excavatis ; apertura obliqui-rotundata. 



Long. 8-20, lat. 3-40 mill. 



Hah. North Transvaal {Col. Bowker). 



A species not unlike P. corneus in miniature. The surface 

 under a lens is found to be verj finely, obliquely, longitu- 

 dinally striate. Tlie whorls are rounded, both the upper and 

 lower disks being equally excavate. 



20. Planorhis Crawfordi, sp. n. (PI. III. fig, 20.) 



P. testa parva, compressa, obliqui-striata, ciiiereo-olivacea ; anfrac- 

 tibus quatuor, lente crescentibus, discis ulrinque subrotundatis, 

 inferiore magis applanato ; apertura depresso-lunari. 



Long. (sp. maj.) 1, lat, 5 mill. 



Hah. Van Staaden's River [J. Graicford, Esq.). 

 A small compressed species, whorls rounded and not angled, 

 somewhat recalling our British P. alhus. 

 Tliree specimens. 



N.B, — In our last paper (Ann, & Mag. Nat. Hist. ser. 6, 

 vol. xi., January 1893, pp. 20, 21) the descriptions of Pupa 

 dysorata and Sykesii were, in part, accidentally transposed. 



Of the former the description should read thus : — 



Pupa dysorata, sp. n. (PI. III. fig. 4.) 



P. testa minutissima, oblonga, Isevi, apice obtuse; anfractibus quinque, 

 tumescentibus, ventricosis ; apertura ovali ; peristomate albido, 

 paullum reflexo, ad marginem columellarem incrassatum uni- 

 dentato. 



Long. 1, lat. -So mill. 



Hah. Griqualand East {E. R. Sykes, Esq.). 



And of the latter : — 



Pupa Sykesii, sp. n. (PI. III. fig. 6.) 



P. testa rimata, minuta, cylindrica, diaphana, apice obtuso ; anfrac- 

 tibus septum vel octo, ventricosis, undique confertira longitu- 



9* 



