1927] ne ic The Aquatic Mollusks of the Belgian Congo 209. 
Neothauma mweruensis E. A. Smith. Kosrxr, 1909, in Martini and Chemnitz, 
‘Syst. Conch. Cab., n. F., II, 21a, Paludina,’ p. 374, Pl. LXXxV, figs. 1-3. 
Type locality: eae ‘Meero (R. Gragelas Coll.). Stappers obtained the typical 
form off Pweto (Pl. XIX, fig. 6). 
This species we ieee to be the type of a new section Rectiviviparus. 
Viviparus mweruensis var. pagodiformis E. A. Smith 
Plate XIX, Figure 7 
Viviparus mweruensis var. pagodiformis E. A. Smita, 1893, Proc. Zool. Soc. 
London, 1893, p. 536, Pl: urx, fig. 7. DaurzENBERG aND GERMAIN, 1914, Rev. Zool. 
Afric., LV,4; i. os, 
Lake Moero: (type locality; R. Craswhay Coll.); Kilwa (J. Bequaert Coll.). 
Stappers collected this variety at a number of places: off Kilwa; off Mobanga; off 
Lukonzolwa; and on the beach at Pweto. This is one of the commonest shells of 
Lake Moero, though living specimens are very rarely met with. 
Viviparus rubicundus (E. v. Martens) 
Paludina rubicunda E. v. Martens, 1879, Sitz. Ber. Ges. Naturf. Fr. Berlin, p- 
104 (type locality: southwestern shore of Lake anne 
Paludina unicolor var. KE. A. SmrrH, 1888, Proc. Zool. Soc. Veneer Dp. 50. 
Vos rubicunda K. v. Martens, 1897, ‘Deutsch Ost Afr., IV, Beschalte 
Weichth.,’ p. 179. Koper, 1907, in Martini and Chemnitz, ‘Syst. @oneh. Cab., mii; 
Th Zhe, Paluaet p. 169, Pl. xxx111, fig. 8. 
Viviparus rubicundus E..v. Martens. E. A. Smrru, 1892, Ann. Mag. Nat. Hist., 
(6) X, p. 123, Pl. x11, fig. 3. J. Turexx, 1911, ‘Wiss. Ergebn. D. Z. Afr. Exp. (1907- 
08),’ LH. 2a, : | | 
Lake Albert: (Gordon Coll.; S. Baker Coll.; Emin Pasha Coll.); at Kassenje 
on the southwestern shore (Stuhlmann Coll.; Schubotz Coll.). 
Viviparus (?) brincatianus (Bourguignat) 
Vivipara brincatiana BoureuicNnat, 1888, ‘Iconogr. Malacol. Tanganika,’ 
Pl. rv, fig. 1; 1890, Ann. Sc. Nat. Zool., (7) X, p. 41, Pl. 1v, fig. 1. E. v. Martens, 
1897, ‘Deutsch Ost Afr., 1V, Beschalte Weichth.,’ p. 1838. E. A. Smrru, 1904, Proc. 
Malacol. Soc. London, VI, 2, p. 99. Kosrurt, 1907, in Martini and Chemnitz, ‘Syst. 
Conch. Cab., n, F),-H, 210, Paludina,* p. 170, PI. xxxii, fie. 11. Ancmy, 1907, 
Bull. Scientif. France et Belgique, (5) IX, (1906), p. 250. 
Type locality: eastern shore of Lake Tanganyika near the mouth of the Mala- 
garazi River. 
According to E. v. Martens (1897), the generic position of this species is doubt- 
ful; it possibly belongs to Cleopatra. 
Viviparus (?) brincatianus var. bridouxianus (Bourguignat) _ 
Vivipara bridouxiana BourauieNnaT, 1888, ‘Iconogr. Malacol. Tanganika, 
Pl. rv, fig. 2; 1890, Ann. Sc. Nat. Zool., (7) X, p. 42, Pl. 1v, fig. 2. Ancry, 1907, Bull. 
Scientif. France et Belgique, (5) IX, (1906), p. 250. 
Vivipara bridouxi Bourguignat.. GmeRMAIN, 1095, Bull. Mus. Hist. Nat. Paris, 
p. 257; 1908, ‘Rés. Scientif. Voy. Afrique Foa,’ p. 665. 
