315 



DESCRIPTIONS OF NEW SPECIES OF LAND SHELLS 

 FROM CENTRAL AFRICA. 



By EDGAR A. SMITH 



(Read before the Society, March ii, 1903). 



(Plate IV.). 



The majority of the species here described are from Uganda, and 

 were collected by the late William Doherty on the Mau Escarpment 

 in the Eastern Province of the Uganda Protectorate, at an elevation 

 of 6,500 — 9,000 feet. 



Particular attention may be called to one of the species of Ennea 

 {£. prodigiosa) which exhibits a very remarkable loop-like sinus at the 

 upper part of the aperture. 



1. Ennea unilirata. (PI. IV. fig. 8). 



Testa parva, oi'ata, cornea, pellucida; spira inarginibus curvatis, ad 

 apicem obtuse conoidea ; anfradus sex, convexi ; sutura profunda vix 

 obliqua sejuncti, oblique leviter striati, supra ad suturani creniclate, 

 ultimus ad apertura/n ascendens, supra dorsum transversim scrobicu- 

 latus; apertura parva, dente parietal i tenui lamelliformi, et lira 

 palatali longe intus sita munita; peristoma leviter incrassatum et 

 rejlexum, margine externa in medio intus prominente, columellari late 

 dilatato. Longif. 3'25 mm., diani. 175 mm. 

 Hab., E. Uganda. 



The remarkable keel-like liration within the outer wall of the body- 

 whorl, indicated exteriorly by a scrobiculation running parallel with 

 the suture, distinguishes this species from its allies. 



2. Ennea commoda. (PI. IV., fig. 9). 



Testa pupoidea, albida, subpellucida ; spira cylindracea, ad apicem obtuse 

 conoidea; anfractus yi, convexiusculi, sutura subprofunda par urn 

 obliqua sejiincti, superiores duo l(eves, cceteri confertim tenuiter oblique 

 striati, ultimus pone labrum contractus et profunde biscrobiculatus ; 

 apertura parva, quadridentata; dens parietalis magnus, lainelliformis, 

 palatalis ceque magnus, columellaris maximus longe intus situs, alter 

 minor versus basim; peristoma expansum, reflexum, marginibus callo 

 tenui junctis, exterjio denti parietali j undo. Longit. 4 mm., diam. 

 2 mm. 



Hab., E. Uganda. 

 In addition to the teeth described, a fifth minute tubercle is visible 



in some specimens at the base of the palatal tooth. 



3. Ennea insolita. (PI. IV., fig. 10). 



Testa parva, pjipoidea, vitrea, pellucida, polita, tenuis, rimata; spira 

 subcylindracea, supra obtuse conoidea; anfractus 7-8, convexiusculi. 



