12 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



DESCEIPTIONS OF NEW SPECIES OF FEESH-WATER SHELLS 

 FEOM CENTEAL AFEICA. 



By Edgar A. Smith, I.S.O. 



Mead I3th December, 1907. 



The shells described in this paper were collected by Mr. R. L. Harger 

 in Lake Tanganyika and Lake Mweru, and have very kindly been 

 presented to the British Museum. In addition to the species now 

 referred to, the collection includes a nice series of the remarkable 

 Uhio (Metaptera) Johnstoni, Smith,' from Lake Mweru, the Vivipara 

 Miveruensis, Cleopatra Johnstoni, Melania Mwemensis, imitatrix, and 

 Crawshayi, and a few species of Unio, Burtonia, Ampullaria, and 

 Limncea from Lake Tanganyika, and some of the usual thalassoid 

 forms. As far as I can ascertain, the only species recorded from Lake 

 Mweru are those quoted by me in the volume of the P.Z.S. already 

 referred to. Among those now described especially interesting is the 

 Mutela, on account of its peculiar form. With this species and the 

 new Cleopatra I have much pleasure in associating the name of the 

 donor and collector. 



GlRAUDIA MINIMA, U.Sp. 



Testa minima, ovato-conica, imperforata, laevis, albida, rufo-zonata; 

 anfractus 6 parum convexi, infra suturam rufo-nigro zonati, ultimus 

 quadrifasciatus ; apertura subpiriformis, intus fasciata ; labrum vix 

 incrassatum ; columella crassa, obliqua, reflexa, callo tenui labro 

 juncta, in medio rufo-nigro tincta. Long. 3, diam. 1 -5 mm. ; apertura 

 1*4 longa, 1 lata. 



Hal. — Lake Tanganyika, under stones. 



A very small species, having the upper whorls with two zones and 

 the body-whorl with four, one, darker than the rest, just below the 

 suture, one above and one below the periphery, and the fourth at the 

 base. The labrum is dark brown at the termination of the zones. 



YiviPARA Kaxingwisiensis, n.sp. 

 Testa ovato-conica, imperforata, olivacea, baud zonata, tenuiter 

 spiraliter striata, incrementi lineis tenuibus sculpta, baud nitida ; 



1 Proc. Zool. Soc, 1893, p. 640, pi. lix, figs. 18-20. 



