TAYLOR : NEW E. AFRICAN LAND SHELLS. 143 



ing the appearance of a double peristome : umbilicus deep and 

 distinct. 



Length, 0*175; breadth, 0-087 i'^- 



Found a few dead specimens on Bawri Island, Zanzibar 

 Channel. Appears to be peculiar to the island; it occurs in old 

 shells among dead leaves. 



The next two species form with this a section, in which are 

 some Australian Bulhni. B. Pacifieiis Pfr., from Queensland, ap- 

 pears almost exactly like the above species, but is probably distinct. 

 Bulimus Zanguebaricus, n. s. (PI. i, f. 3.) 



Shell ovato-conical, inclining to turrite, moderately thick, of a 

 light brown color, very faintly striulate transversely : epidermis 

 rather thin : whorls 6|, tumid, inflexed towards suture, gradually en- 

 larging towards body whorl which is the largest of all — the penulti- 

 mate and preceding whorls are nearly equal in size ; apex small and 

 rounded: suture deep and distinct: mouth rotundo -ovate nearly as 

 broad as long: peristome thin, everted: inner lip short, reflected a 

 little outwards behind : umbilicus small but deep and distinct. 



Length, o'i62; breadth, 0*07 5, 



Numerous dead among grass in a sandy spot down the coast 

 of Zanzibar, in company with numerous other land shells. 



This is very closely allied to the last, but may be distinguished 

 by its smaller and more slender shape, by being thinner, and by 

 having the peristome less everted and solid. 



Pupa turricula, n. s. (PI. i, f. 4 ) 



Shell short, broad, fusiform pointed, moderately thin, orna- 

 mented with close, regular, transverse and raised stri^, those on the 

 ultimate whorl being much larger and further apart : color brownish : 

 whorls 8, very convex, behind they are flattened and inflexed towards 

 the suture — the last whorl is deep but considerably contracted in 

 breadth, the turn preceding the penultimate is the broadest, the 

 others narrowing rapidly in each direction from it; the spire of about 



