208 Transactions of the Royal Society of South Africa. 



Lanistes olivaceus (Sow.), 1834. 



1834. Paludina olivacea Sow., Gen. Shells, part 41, pi. 183, 

 fig. 3. D.F. 



1839. Ampullaria purpurea Jonas, Arcli. f. Naturg. v, 1, p. 342, pi. 10, 

 fig. 1. D.F. 



1839. Bulimus tristis Jay, Cat. Shells, p. 121, pi. 7, fig. 1. N.F. 



1840. Meladomus bulimoides Swains., Treatise Malac, p. 340. D. 

 1866. Lanistes olivaceus Sow., var. procerus Mts., Novit. Conch, ii, p. 292, 



pi. 71, figs. 1-2. D.F. 



Hab. Mozambique. Near Cabaceira (Kirk). 



L. Marques. Gorongozo Dist. (Wells-Cole). 



The shell of this species is usually considerably more elongate than that 

 of L. ovum, and easily distinguishable. 



Family VIVIPARIDAE. 



Genus Vivipara de Montfort, 1810. 



Vivipara capillata Frnfd.. 1865. 



1865. Vivipara capillata Frnfd., Verb. Zool. Ges. Wien. xv, p. 533, 

 pi. 22. D.F. 



Hab. L. Marques. Rikatla ; L. Mhandlen ; L. Pavi (Junod). 



The single example from L. Pavi is unusually slender, measuring 

 23-8x16 mm., apert. ll-2x8-8 mm., and thus resembles some of the 

 Nilotic forms of F. unicolor (Oliv.) rather than capillata, but the material 

 is insufficient to admit of further surmise. 



Genus Cleopatra Troschel, 1857. 

 Cleopa,tra ferruginea (Lea), 1850. 



1850. Melania ferruginea Lea, P.Z.S., p. 182. D. 



1851. ,, zanguebarensis Petit, J. de C. ii, p. 263, pi. 7, fig. 1. D.F. 

 ,, ,, amaena Morel., ibid., p. 192, pi. 5, fig. 9. D.F. 



1860. ,, ferruginea Lea, Rve., Conch. Icon., pi. 21, fig. 147. D.F. 



1878. Paludomus africana Mts., Monatsb. Ak. Wiss. Berlin, p. 297, pi. 2, 

 figs. 11-13. D.F. 



Hab. Mozambique. Mopera, R. Quaqua, near Quilimane (Stuhlmann). 



L. Marques. L. Mhandlen ; L. Schwabe (Junod). 



The limits of variation and distribution of this species are not satis- 

 factorily defined, as many specimens attributed to it in collections are in 

 such poor condition that their exact identification can only be a matter 



