British and German East Africa, &c. 533 



one more in the present species, are rather flatter and the 

 transparent peripheral band is lacking. 



Alt. 12*25, diam. maj. 5 mm. 



Aperture: alt. diam. 2"25 mm. 



Hub. Shimbi Hills, British East Africa. 



Achatina iredalei, sp. n. (Fig. 20.) 



Shell ovately fusiform, moderately solid, the earlier whorls 

 pink, the latter covered with a brownish periostracum, and 

 painted with broad, irregular, somewhat distant and occasion- 

 ally much broken, transverse chestnut bands and flame- 

 markings ; whorls 7, regularly increasing, rather flattened, 

 decussately sculptured, the sculpture becoming obsolete to- 

 wards the base ; sutures impressed, crenellate and narrowly 

 margined below; columella bluish white, a very thin callus 

 joining it with the sutural region just inside the aperture, 

 slightly excavated, descending nearly vertically ; labrum 

 simple, acute; aperture rather narrowly, elongately ovate, 

 interior of shell bluish white. 



Alt. 101, diam. 41 mm. 



Aperture: alt. 48, diam. 29 mm. 



Hob. Shimbi Hills, British East Africa. 



Curvella caloraphe, sp, n. (Fig. 21.) 



Shell ovately fusiform, perforate, rather solid, whitish, 

 glossy ; whorls 5, the first four flatfish and finely sculptured 

 with transverse, moderately closely set, arcuate stria?, the 

 last more convex and sculptured with much more closely set, 

 arcuate stria?; sutures impressed, broadly margined below, 

 especially on the last whorl ; umbilicus narrow, deep, partly 

 concealed by the reflexion of the columella ; columella white, 

 outwardly expanded, bulging inwardly towards the centre, 

 excavated below and diffused above into a thin, ill-defined, 

 parietal callus which reaches the upper margin of the labrum ; 

 labrum acute, slightly reflexed btdow, dilated in front and 

 then receding above; aperture inversely auriform; interior 

 of shell white, showing the closely set, transverse sculpture 

 through the test. 



Alt. 11"5, diam. maj. 6'5, diam. min. 5 mm. 



Aperture : alt. 7, diam. 3 mm. 



Bab. Shimbi Hills, British East Africa. 



Differing from P. wyassana, Smith, chiefly by its wider 

 aperture, excavated columella, and in having the sutures 

 noticeably margined, which is not the case in that species. 



