1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 195 
Lanistes innesi Pauuary, 1903, Bull. Inst. Egyptien, (4) III, (1902), p. 91, 
Pl. 1, fig. 2. White Nile. — : 
Lanistes joyberti (Bourguignat). See p. 199. 
Lanistes niloticus (Swainson) =Ampullaria nilotica Swainson, 1831, ‘Zool. 
Illustrations,’ (2) I, Pl. xxxvuiu1, fig. 2 (the two central figures); with desorption in 
accompanying letter: -press. No locality mentioned. The species is not determinable. 
Lanistes nitidissimus (Bourguignat) =Meladomus nitidissimus BOURGUIGNAT, 
1889, ‘Moll. Afrique Equator.,’ p. 171. Affluent of Kingani River near Dauainoye- 
Vuami River near Kondoa; plain of Uha on the shores of the Russugi River; all in 
Tanganyika Territory. 
Lamstes olivaceus (J. Sowerby) =Paludina olivacea James SowxErRBy, ° 1825, 
‘Catalogue of the shells of Earl Tankerville,’ Appendix, p. ix; 1834, ‘Genre of 
Shells,’ No. 41, Paludina, fig. 3. No locality mentioned. Undeteradanble: this may 
be either L. ovwm (Peters) or L. purpureus (Jonas). 
Lanistes ovum (Peters). See p. 196. 
Lanistes ovum elatior HE. v. Martens. See p. 196. 
Lanistes ovum ingens (Ancey) = Meladomus ovum var. ingens ANcEY, 1894, Mém. 
Soe. Zool. France, VII, p. 223. Lake Nyasa, at Karonga. 
Lanistes ovum var. lacoint GERMAIN, 1906, Mém. Soe. Zool. France, XIX, p. 324; 
1908, in A. Chevalier, ‘L’ Afrique Central Frangaise,’ p. 538, Pl. v, fig. 16. Lower 
Chari River (between Buguman and Fort Lamy), French Equatorial Africa. 
Lanistes ovum var. major Germain. See p. 196. 
Lanistes ovum var. plicatus E. v. Martens, in Kobelt, 1909, Abh. Senckenb. 
Naturf. Ges., XXII, p. 79 = Lanistes ovwm var. plicosus E. v. MarTEns, 1897, ‘Deutsch 
Ost Afr., IV, Beschalte Weichth.,’ p. 167 (not L. plicosus E. v. Martens, 1879). Ilindi 
in User ; between Tabora. and Lake Tanganyika; both localities in Tanganyika 
Territory. 
Lanistes procerus (EK. v. Martens). See p. 197. 
Lanistes procerus langi Pilsbry and Bequaert. See p. 197. 
Lanistes procerus magnus (Furtado). See p.198. 
Lanistes purpureus (Jonas) = Ampullaria purpurea JONAS, 1839 Archiv f. Natur- 
gesch., V, 1, p. 342, Pl. x, fig. 1. Bulimus tristis Jay, 1839, ‘Cat. of Shells,’ 3d Ed,. 
p. 121, Pl. viz, fig. 1. Meladomus bulimoides Swatnson, 1840, ‘Treatise on 
Malacology,’ p. 340, footnote. Originally described by error from the Swan River, 
Australia. We have seen specimens from Zanzibar and from Tete, Portuguese East 
Africa. 
Lanistes pyramidalis (Bourguignat). See p. 199. 
Lanistes sinistrorsus (1. Lea) = Paludina sinistrosaI. La, 1839, Trans. American 
Phil. Soc., N.8., VI, p. 90, Pl. xx111, fig. 78. Described by error from the East Indies. 
We have seen specimens labeled Gaboon and Mozambique. The species has been 
recorded from Tanganyika Territory (Unyamwezi). Bourguignat (1890, Ann. Sc. | 
Nat. Zool., (7) X, p. 78) mentions it from the Malagarazi River, an affluent of Lake 
Tanganyika on the eastern shore, but we are inclined to believe that the Tanganyika 
forms are not true sinistrorsus. | 
Lanistes zambesianus Furtrapo, 1886, Journ. de Conchyl., XXXIV, p. 148, Pl. 
vu, figs. land la-b. Zambezi River, below Tete, Portuguese East Africa. 
