1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 257 
Melania tuberculata O. F. Miller. Bourautenat, 1853, ‘Cat. Moll. de Sauley,’ 
p. 65. H. Apams, 1866, Proc. Zool. Soc. London, p. 376. E. A. Smrru, 1881, op. cit., 
p. 291. Sourduenen 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. x1, figs. 26 and 27 
1890, Ann. Sc. Nat. Zool., (7) X, p. 163, Pl. x1, figs. 26 and 27. E. A. Surru, 188g, 
Proc. Zool. Soc. hendens poe How, Wkninee 1897, ‘Deutsch Ost Afr., IV, Be- 
schalte Weichth.,’ p. 198. E. A. Smrrx, 1904, Proc. Malacol. Soc. London, VI, 2, 
p. 100. Ancry, 1907, Bull. Scientif. France et Belgique, (5) IX, (1906), p. 250. 
GrRMAIN, 1905, Bull. Mus. Hist. Nat. Paris, p. 257; 1912, op. cit., p. 82; 1916, op. 
cit., p. 202; 1908, ‘Rés. Scientif. Voy. Afrique Foi,’ p. 649. J. Turenx, 1911, ‘Wiss. 
Ergebn. D. Z. Afr. Exp. (1907-08),’ ITI, p. 211. . 
Strombus vibex GMELIN, 1791, in Linneeus, ‘Syst. Nat.,’ 13th Ed., I, 6, p. 3522. 
Lake Tanganyika: at the southern end (Foa Coll.); bay of Karema; between 
the mouth of the Malagarazi and Cape Kabogo. Lake Kivu: (J. E. 8. Moore Coll.; 
Schubotz Coll.). Lake Edward: Kiruwe and Katarenge near Vichumbi on the south- 
western shore, where it is also found subfossil 1 meter above the level of the Lake; 
near Kishakka on the western shore (Stuhlmann Coll.); near Kasindi and Vichumbi, 
and subfossil in sediments 5 meters above the level of the Lake at Vichumbi (Gromier 
Coll.). Lake Albert: (8. Baker and Emin Pasha Coll.); near Kassenje on the western 
shore (Stuhlmann Coll.).. Lake Mohasi in Ruanda (Schubotz Coll.). 
~ Kabare, on the southern shore of Lake Edward (J. Bequaert Coll.). 
Kisenje on the northeastern shore of Lake Kivu (R. Van Saceghem Coll.). 
A series from Kabare, Lake Edward, is figured, showing the varia- 
> tion in color—from white to uniform blackish brown—and in sculpture. 
Length, 25.0 mm.; diameter, 7.5 mm.; 10 whorls remaining. Pl. xx1, Fig. 1. 
cr 19.6 66 . aC B57 % 10. a3 a3 a3 ae ey 
GE 20.0 66 oC ran; ra 8h a ce a a 66 8. 
Melanoides tuberculata var. dautzenbergi, new name 
Melania tuberculata var. victoriz DAUTZENBERG, 1908, Journ. de Conchyl., LVI, 
p. 23, Pl. 1, figs. 3 and 5 (type locality: Kavirondo Bay, Lake Victoria). GERMAIN, 
1912, Bull. Mie: Hist. Nat. Paris, p. 82; 1916, op. cit.,p. 203. (Not Melania victoriz 
Dohrn, 1865). 
Germain records this variety as having been found together with typical tuber- 
culata, in Lake Edward at Vichumbi and Kasindi (Gromier Coll.). All of the numer- 
ous Melanoides which we have seen from Lake Edward belong to typical tuberculata. 
The following African forms also appear to be variations of M. 
tuberculata: : 
Melania dembea ReEve, 1860, ‘Conchol. Iconica,’ XII, Melania, Pl. xx111, 
fig. 161. Type locality: Lake Dembea [Tsana], Abyssinia. 
Melania inhambanica E. v. Martens, 1860, Malakoz. Blatter, VI, (1859), p. 216, 
Pl. 11, fig. 10. Type locality: Inhambane, Portuguese East Africa. 
Melania tamsii DunKER, 1845, Zeitschr. f. Malakoz., II, p. 165. Type locality: 
Island 8. Anton, Cape Verde Archipelago | 
3 E. v. Martens (1904, in Passarge, ‘Die Kalahari,’ p. 757) has recorded from 
Central South Africa (Lake Ngami and Makarikari) the varieties plicifera Mousson 
(described from Java) and virgulata (Quoy and Gaimard) (described from Mauritius). 
These identifications appear to us very questionable. 
