144 GIBBONS : NEW EAST AFRICAN LAND SHELLS. 



Buliminus Mozambicensis, Pfr. 



Numerous on low shrubs and grass; Island of Mozambique. 

 At Zanzibar a variety occurs, rare and local. Eggs are ovato- 

 globular, white, with thin calcareous shell, length rather more 

 than I mill. 



Buliminus punctatus, Anton. 



Mozambique and Zanzibar. On shrubs and grass. My 

 specimens are more calcareous and paler than Ceylon shells, and 

 less tumid than the Brit. Mus. examples from Bundelkund, C. 

 India. On Chapani Island a variety occurs associated with 

 Na7iina Mozambicensis, &c. ; it is nearer the Indian form. 



Stenogyra lucid a, sp. nov. 



Testa gracilis, diapliana, sublevis, nitida; anfr. y, planiusculi, 

 gradatim accrescentes ; ult. major ct tumidior; apex obhisiuscii- 

 his ; apertura ovato-elliptica ; labr. arcuatmn; coil umella par iim 

 reflexa. 



Long, j^ mill., diam. 2 mill. 



Allied to S. delicata, but perfectly distinct, being much 

 smaller, with the whorls flatter and nearly smooth, and the 

 aperture less elongated. 



Occurs on Bawri Island, Zanzibar. 



I may here call attention to a peculiarity in the distribution 

 of the land shells among the coral islets near Zanzibar. My 

 researches were too limited to allow me to state authoritatively 

 that certain species are confined to one island and not found 

 elsewhere, but the results are sufficiently curious to deserve 

 notice. There are several of these islets, but I only examined 

 two of them at all thoroughly. Bawri is the largest and is 

 situated about 3 miles from Zanzibar; it possesses cocoa-nut palms 

 and orange trees, but the greater part is covered with jungle. 

 The comparatively recent formation of this, as of the other islets, 

 is shewn by the successive layers above the present high water 



J.C, ii... May, 1S79 



