2 54 Quarterly /on ma I of Conehotogy. 



forming more than y'l length of the shell : spire tapering : apex 

 obtuse : suture deep : mouth elliptical, somewhat pointed 

 below : peristome thin, direct : outer Up slightly curved : inner 

 lip reflected and partially covering the umbilicus : umbilicus 

 tubular and deep. 



Length 0.762, breadth 0.312 in. 



Ilab. Bawri Island, Zanzibar, Channel. 



Occurs amongst dead leaves, in old marine shells and under 



bushes, but rarely alive. IMr. Gibbons has not found it at Zanzibar 



nor on any of the other coral islands. It appears to be confined 



to Bawri. 



The epiphragm secreted for hybernation is calcareous, white, 



very strong and solid, bears no slit in the middle like that of 



Achatina, is convex and level with the peristome. 



Buliminus tumidus, Gibbons, M.S. (Plate II, fig. 4). 



Shell conically-turrite of a brown, colour, transversely striate in 

 the line of growth : strife slight and irregular : epidermis distinct : 

 whorls seven, very convex, compressed : body whorl large and 

 tumid, occupying less than half the length of the shell : spire 

 tapering : apex rather acute : suture deep and distinct : 7nouth 

 ovate, rather broad : peristome thin and direct : inner lip re- 

 flected partly concealing the umbilicus : umbilicus large and 

 very deep. 



Length 0.5, breath 0.3. 



Hab. Zanzibar and on Chapani I. 



Occurrs sparingly about Zanzibar, but dead only. Mr. G. also 



found specimens on one of the coral islets (Chapani Island) with 



Bulimus puuctatus, Anton, Helix Mozambicensis, Pfr., &:c., but it 



did not occur on Bawri Island. 



It is distinguished from the preceding species by the greater 



convexity and compactness of its whorls, and by its smaller and 



rounder body-whorl. 



