GIBBONS : NEW EAST AFRICAN LAND SHELLS. 1 43 



Both in shell and animal N. Mozamhicejisis approaches N. 

 cotyledonis, Bens., of the Cape of Good Hope. 



Achatina fulica, Fer. 

 Zanzibar. Very numerous and generally diffused, being the 

 only land shell that is so; it lives on hedges, bushes, trees, &c. 

 It has been introduced into Mauritius and Calcutta, and is 

 recorded from the Seychelles and Madagascar. 



Achatina Rodatzi, Dunker. 

 Zanzibar, Occurs sparingly with the last, to which it is very 

 closely allied. 



Achatina allisa, Reeve? 

 Zanzibar. One dead and very ancient specimen in a cave 

 on a small islet between Bawri Island and Chapani. 



Achatina reticulata, Pfr. 



Lindi Bay, North of Cape Delgado. Dead only; the largest 

 was 8 in, in length, 



Achatina panthera, Pfr. 



Mozambique and Inhambane. It is common on the Island 

 of Mozambique, living on trees and in cavities of rocks shaded by 

 bush; on the Mainland individuals are much larger and more 

 solid. During the dry season it takes refuge in holes in trees — I have 

 seen a dozen or more collected in one cavity — the aperture of the 

 shell is then closed by an opaque epiphragm (non-calcareous) having 

 a longitudinal slit down the middle. The eggs of this, as in all 

 the S. and E, African species, are small and numerous; one indi- 

 vidual deposited its eggs while in my possession — I counted 196 — 

 they were oval, yellow, with a thin calcareous shell, length 6 mill. 

 The animal is omnivorous, eatiug meat, other snails (when dead), 

 vegetables and paper. 



Achatina immaculata, Lam. 



I have obtained this Delagoa Bay species from Inhambane. 

 Unlike the more northern species, it seems to live always on the 

 ground, 



