158 Mr. E. A. Smith on Land- and 



forms of Achatina, but has rather the appearance of behig 

 obliquely plicate at the lower part. There is a slight film of 

 callus connecting it with the upper end of the outer lip. The 

 larger variety, like the type, has the faint raised line around 

 the middle of the body-whorl, and agrees in all other respects 

 except in the points above mentioned. 



Stenogyra [Suhulina) mamhoiensis. (PI. V. fig. 16.) 



Testa elongata, subulata, subclavata, alba, epidermide flavescente et 

 strigata induta ; anfract. 10, convesiusculi, lente crescentes, liueis 

 incrementi obliquis tenuibus striati, sub lente striis spiralibus con- 

 fertis microscopicis sculpti ; sutura obUqua, subprofunda ; apex 

 mammillaris ; apertura albida, subovata, supra et infra paulo 

 acuminata, longit. totius ^ ajquans ; columella bene arcuata, callo 

 tenui albo induta, antice abrupte truncata ; labrum tenue, regu- 

 lariter curvatum. 



Longit. 46 miUim., diara. 13| ; apertura 11 1 longa, 6| lata. 



Hah. On the plains within 50 miles of Mamboia (Last). 



This fine species bears a general resemblance to S. rangi- 

 ana, Pfr. (K,t eve's Conch. Icon., Achatina, fig. 65), but has 

 longer whorls and is rather larger. An egg from one of the 

 specimens is elongate- ovate and 5 millim. in length. 



Stenogyra [Suhulina) uaagarica. (PI. V. fig. 17.) 



Testa gracilis, subulata, nitida, albido-subpellucida, epidermide 

 olivaceo-fusca plus miuus induta ; spira sursum attenuata, ad 

 apicem obtusa ; aufract. 15, ax^icales pauci convexi, caeteri plani- 

 usculi, lente crescentes, lineis incrementi obliquis, superne prope 

 suturam arcuatim subplicatis, sutura leviter crenulata et obliqua 

 sejuncti, ultimus subquadratus ; apertura acute ovalis, longit. 

 totius \ ad»quans ; columella arcuata, antice truncata, callo tenui 

 induta. 



Longit. 37 millim., diam. 7 ; apertura 7 longa, 3 j lata. 



Hah. Usagara {Bishop Hannington) j Kidete {Emin 

 Pasha) . 



This is a very elongate species with almost flat whorls. 

 The subplicate lines of growth, especially on some of the 

 npper volutions, give the sutural line a somewhat crenulated 

 appeaj-ance. S. Foxcrojti, Pfr., from Sierra Leone, has longer 

 and more convex whorls and they are fewer in number. 



Stenogyra {Suhulina} Lasti. (PL V. fig. 18.) 



Testa gracilis, subulata, polita, olivaceo-fusca, colore saturatiore hie 

 illic oblique strigata ; spira superne angustata, ad apicem mam- 



