218 MR. CRAVEN ON SHELLS FROM USAMBARA. [Mar. 16, 



faintly reflexed ; suture very deep but narrow, slightly puckered at 

 its edges. 



Dimensions ; — Length 30 to 35 millims., breadth of last whorl 9, 

 height of aperture 7, breadth of aperture 4g. 



Locality. Magila, under moss growing on rocks. 



AcHATiNA KiRKii, sp. uov. (Plate XXII. fig. 9.) 



Shell turriform, obliquely lirate, of a yellowish-brown colour, 

 sometimes marked with chocolate-coloured spiral bands ; epidermis 

 glossy ; apex very obtuse ; spire rather elongated ; whorls 71, convex, 

 the last occupying rather more than one third of the entire length 

 of the shell ; labrum thin, simple ; columella obliquely curved ; the 

 generic fold small, but well defined ; suture deep. 



Dimensions : — Length 2G millims., breadth of last whorl 12, height 

 of aperture 10, breadth of aperture 6. 



Locality. jMagila, along with Helix usamharica, in woods near a 

 waterfall, scarce. 



I have great pleasure in naming this species after Dr. Kirk, 

 H.M. Consul-General in Zanzibar. 



PcpA usAMBARicA, sp. Dov. (Plate XXII. fig. 2.) 



Shell pupiform, rimate, gibbcse, strongly obliquely lirate ; apex 

 obtuse ; whorls 8, very convex, narrow, gradually increasing, the sixth 

 being the broadest and the last shghtly detached and a little pro- 

 duced ; aperture small, armed with six teeth ; a large thin lamellar 

 tooth extending some distance within the shell, at the centre of the 

 upper margin ; three teeth, of which the centre one is the largest, on 

 the labrum or outer lip ; a small and narrow internal lamellar tooth 

 a little below the centre of the labrum ; a broad bifid tooth on the 

 columellar margin : none of these teeth, with the exception of the 

 one on the upper margin, reaches the margin of the aperture ; on the 

 exterior of the last whorl are small depressions or pits correspond- 

 ing with the teeth ; labrum entire, expanded and somewhat reflexed ; 

 suture well defined. 



Dimensions : — Diameter of sixth whorl 6 millims., greatest dia- 

 meter of last whorl 7, smallest diameter of last whorl 5, height from 

 base of aperture to apex 11, height of aperture 4, breadth of aper- 

 ture 3|. 



Locality. Magila ; rare. 



Cyclostoma zanguebaricum. Petit, Journ. d. Conch, vol. i. 

 p. 53, pi. iii. fig. 6. 



Locality. Pangani, Marongo, and Zanzibar ; very abundant round 

 the roots of shrubs and trees. 



Cyclophorus magilensis, sp. nov. (Plate XXII. fig. 1.) 



Shell depressed, subdiscoid, umbilicated, striated by fine lines of 

 growth, glossy, of a yellowish-brown colour ; apex flattened and 

 very obtuse ; whorls 4, very convex and rapidly incrensing, the last 

 slightly descending near the aperture ; aperture circular ; labrum 



