Manchester Memoirs, Vol. li. (1907), No. 4. 5 



Fam. Viviparid.e. 

 Cleopatra mterizensis sp. n. (Fig. 2 of Plate). 



CI. testa anguste umbilicata, ovato-oblonga, laevigata, 

 solidula, pallide straminea, anfractibus 6, tumidulis, 

 quorum apicales brunnei, Iseves, tribus infra apud medium 

 acute spiraliter carinatis, ultimo anfractu carina conspicua 

 ad medium, utrimque obscure spiraliter angulato, quasi- 

 tricarinato, apertura ovato-rotunda, peristomate continuo, 

 fere rotundo, tenui, margine columellari paullum incrassato. 



Alt. 14. Diam. 8 mm. 



Hab. Bed of Mterize River, a tributary of the 

 Loangwa River. 



A plain little species, with the upper whorls once 

 spirally keeled, the penultimate twice, the lower carina 

 only just above the suture, and partially obscured by the 

 growth of the body whorl, this latter being provided with a 

 central keel, and a rudimentary one on each side, causing 

 the semblance of two slight angles. No colour zones are 

 visible, this and the straw-coloured surface being perhaps 

 both owing to a bleached condition. In form and general 

 appearance C. bulimoides Oliv. is approached, but that 

 species is never carinate. 



CI. emini E. A. Smith (Proc. Zool. Soc. Loud., 1888, 

 p. 54, fig. 2) is nearer. This species is considered by von 

 Martens synonymous with CI. pirothi Jickeli (1881), this 

 name having thus a priority of seven years. Here the 

 keels are very acute and distinct, blackish brown on a 

 pale ground, and the body whorl decidedly bicarinate. 

 The form is gradate, and not in the least ventricose, as is 

 CI. mterizensis. And, lastly, CI. johnstoni, E. A. Sm. 

 (Proc. Zool. Soc. Lond., 1893, p. 637, pi. 59, fig. 9) differs 

 entirely in sculpture, not being therefore in any degree 

 comparable. 



