592 OK LAND -SHELLS FEOM BEITISH OENTEAL AFEIOA. [May 2, 



spiraliter undique tenuiter lirata lineisque incrementi tenuissimis 

 sculpta ; anfractus 5, convexi, superiores duo Iceves, ultimus antice 

 paulo descendens ; apertura subcircularis, longit. totius | su- 

 perans, intus rufo-fuscescens, zona nigro-purpurea picta, lineis 

 saturate fuscis supra obscure ornata ; peristoma albidum, 

 margine dextro mx expanso, columellari suhreflexo. 

 Diam. maj. 21 millim., min. 16, alt. 20 ; apertura 10 longa, 



9 lata. 

 Hah. Mount Chiradzulu ; Nyika Range, 7000 feet, and Zomba 

 Plateau, 5000 feet. 



Allied to P. [Cyclostoma'] insularis Pfeiffer from Natal, but more 

 widely umbilicated, with more convex whorls, more numerous and 

 finer spiral lirse, and without the second purplish-black zone upon 

 the upper part of the body-whorl which revolves up the spire. 

 The outer margin of the aperture also is less expanded. 



EXPLANATION OF THE PLATES. 



Plate XXXIII. 



Figs. 1, 2. Ennea (Gulella) vicina, p. 580. 

 3, 4. „ „ varians, p. 581. 



5, 6. Streptaxis johnstoni, p. 581. 

 7, 8. „ kirki, p. 582. 



9, 10. Helicarion nyasanus, p. 682. 

 11, 12. „ masuktiensis, p. 582. 



13, 14, 15. Thapsia mixta, p. 582. 

 16, 17, 18. „ insimtdans, p. 683. 



19, 20. „ masukuensis, p. 583. 

 21,22,23. „ simzdata, p. 58S. 

 24, 26. „ nyikana, p. 584. 

 26, 27, 28. „ decepta, p. 584. 

 29, 30. Zingis johnstoni, p. 584. 

 31. „ whytei, p. 584. 

 32, 33, 34. Martensia consociata, p. 684. 



35, 36. Pkasis (Traohycystis) fusco-cornea, p. 685. 

 37, 38. „ „ fusco-olivacea, p. 585. 



39. Trochozonites sharpei, p. 586. 



40. Buliminus (Rhachis) chiradzuluensis, p. 686. 

 41, 42. „ (Conulinus) nyasanus, p. 686. 



43. „ „ metuloides, p. 587. 



44. Curvella nyasana, p. 588. 



45. „ whytei, p. 588. 



46. Subulina chiradziduensis, p. 588. 



Plate XXXIV. 

 Figs. 1. Achatina panth&ta, p. 589. 



2. 3, „ glaucina, p. 690. 

 4, 5. „ johnstom, p. 590. 



Plate XXXV. 



Figs. 1, 2. Achatina craveni, p. 590. 



3. 4. „ fragilis, p. 591. 

 5. Pomatias nyasanus, p. 691. 



