1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 333 
Edgaria tiarella (EK. v. Martens) 
Paramelamia (Edgaria) tiarella K. v. Martens, 1895, Nachrichtsbl. Deutsche 
Malakoz. Ges., X XVII, p. 187; 1897, ‘Deutsch Ost Afr., IV, Beschalte Weichth..,’ 
p. 209, Pl. vi, fig. 43. | 
Edgaria tiarella KE. v. Martens. E. A. Smiru, 1904, Proc. Malacol. Soc. London, 
VI, 2, p. 90. Ancry, 1907, Bull. Scientif. France et Belgique, (5) IX, (1906), pp. 251 
and 263. 3 
Lake Tanganyika: originally described from the lake, without more definite 
locality; Ufipa (Lechaptois Coll.). 
Edgaria variabilis (Martel and Dautzenberg) 
Nassopsis variabilis MarTEL AND DavuTzENBERG, 1899, Journ. de Conchyl.s 
XLVII, p. 174, Pl. vist, figs. 16-17. 
Edgaria variabilis Martel and Dautzenberg. E. A. Smirx, 1904, Proc. Malacol. 
Soc. London, VI, 2, p. 90.° ANcry, 1907, Bull. Scientif. France et Belgique, (5) IX, 
(1906), pp. 251 and 268. 
Lake Tanganyika: Mpala (type locality; Guillemé Coll.); Ufipa (Lechaptois 
Coll.). 
The following forms, described by Bourguignat, are probably mere individual 
or local variations of some of the foregoing species: 
Edgaria alphonst (Bourguignat) =Paramelania alphonst Boureuienat, 1890, 
Ann. Se. Nat. Zool., (5) X, p. 218. Edgaria milne-edwardsiana {. alphonst ANCEY, 
1907, Bull. Scientif. France et Belgique, (5) IX, (1906), p. 252. Lake Tanganyika: 
Mlilo (type locality). 
Edgaria bythiniformis (Bourguignat) = Paramelania bythiniformms BoURGUIGNAT, 
1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xv, figs. 26-27; 1890, Ann. Sc. Nat. Zool., 
(7) X, p. 242, Pl. xv, figs. 26-27. Edgaria elongata f. bythiniformis Ancry, 1907, Bull. 
Scientif. France et Belgique, (5) IX, (1906), pp. 252 and 263. Lake Tanganyika: 
at the outflow of the Lukuga River (type locality); Ufipa (Lechaptois Coll.). 
Edgaria cameroniana (Bourguignat) = Paramelania cameroniana BouRGUIGNAT, 
1885, ‘Notice Prodrom. Moll. Giraud Tanganika,’ p. 80; 1888, ‘Iconogr. Malacol. 
Tanganika,’ Pl. xv, figs. 22-23; 1890, Ann. Sc. Nat. Zool., (7) X, p. 210, Pl. xv, figs. 
99-23. Edgaria egregia f. cameroniana Ancry, 1907, Bull. Scientif. France et Bel- 
gique, (5) IX, (1906), p. 252. Lake Tanganyika: Mlilo and Kapampa; type locality 
not designated. 
Edgaria duveyriertana (Bourguignat) = Paramelania duveyriertana BOURGUIGNAT, 
1885, ‘Notice Prodrom. Moll. Giraud Tanganika,’ p. 79; 1888, ‘Iconogr. Malacol, 
Tanganika,’ Pl. xv, figs. 12-18; 1890, Ann. Sc. Nat. Zool., (6 p. 207, Pl. xv, fies. 
12-13. Edgaria egregia f. dwveyrieriana Ancny, 1907, Bull. Scientif. France et 
Belgique, (5) IX, (1906), p. 252. Lake Tanganyika: Mlilo (type locality); Pambete. 
Edgaria egregia (Bourguignat) Ancry, 1907, Bull. Scientif. France et Belgique, 
(5) IX, (1906), pp. 252 and 263=Paramelania egregia BoURGUIGNAT, 1885, ‘Notice 
Prodrom. Moll. Giraud Tanganika,’ p. 81; 1888, ‘Iconogr. Malacol. Tanganika,’ PI. 
xv, figs. 1-3; 1890, Ann. Sc. Nat. Zool., (7) X, p. 205, Pl. xv, figs. 1-3. Lake Tan- 
ganyika: Kapampa (type locality); Ufipa (Lechaptois Coll.). | 
