ee 
1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 423 
Aspatharia (Spathopsis) wahlbergi (Krauss) =Iridina wahlbergi Krauss, 1848, 
‘Stidafrik. Mollusk.,’ p. 19, Pl. 11, fig. 1. Smpson, 1914, ‘Descript. Cat. of Naiades,’ 
p. 1326. Spatha natalensis I. Lma, 1864, Proc. Ac. Nat. Sci. Philadelphia, XVI, p. 
118; 1867, ‘Observ. Unio,’ XI, p. 68, Pl. xx, fig. 58. South Africa; originally 
described from the “ Affenfluss,’”’ an affluent of the Limpopo. eo 
Aspatharia wahlbergi var. dorsalis (E.v. Martens) = Spatha wahlbergi var. dorsalis 
EK. v. Martens, 1897, ‘Deutsch Ost Afr., [1V, Beschalte Weichth.,’ p. 247. Simpson, 
1914, ‘Descript. Cat of Naiades,’ p. 13828. Mozambique (Zambezi River) and 
Tanganyika Territory. : | 
Aspatharia wahlbergi hartmanni (E. v. Martens)=Spatha hartmanni E. v. 
Martens, 1866, Malakoz. Blatter, XIII, p. 10. Jickeni, 1874, Nova Acta Ac. Nat. 
Cur. Dresden, XX XVII, 1, p 263, Pl. vii1, figs. 2a-c. Spatha wahlbergi var. hart- 
mannt Simpson, 1914, ‘Descript. ‘Cat. of Naiades,’ p. 1327. Spatha (Spathella) 
bourguignati “‘Ancey”’ BouravienaT, 1885, ‘Esp. Nouy. Ouk. Tanganika,’ pp. 12 
and 14 (southern shore of Lake Victoria). Spathella bourguignati BourcuIeNaT, 
1889, ‘Moll. Afrique Equator.,’ p. 197, Pl..v111, fig. 1. Spathella bloyett BoURGUIGNAT, 
1889, op. cit., .p. 198, Pl. vit, fig. 3 (Makata River, an affluent of the Vuami River, 
Tanganyika Territory). Spathella spathuliformis Bourauianat, 1889, op. cit., p. 199, 
Pl. viri, fig: 4 (Magogo River at Unyanguira in Ugogo, Tanganyika Territory). 
Spathella brumpti A. T. pe RocHEBRUNE AND GERMAIN, 1904, Bull. Mus. Hist. Nat. 
Paris; p. 144. Leptospatha brumpti A. T. DE ROCHEBRUNE AND GERMAIN, 1904, Mém. 
Soc. Zool: France, XVII, p. 26, Pl. 11, fig. 6 (Bass River near Lake Rudolf). Spatha 
wahlbergi var. bourguignatt Simpson, 1914, ‘Descript. Cat. of Naiades,’ p. 1327. 
Spatha brumpti Simpson, 1914, op. cit., p. 1329. Birket Kura, Sennar (type locality 
of hartmannt). | 
Aspatharia (Spathopsis) wissmanni (E. v. Martens): See below. 
Aspatharia wissmanni bangalorum Pilsbry and Bequaert. See p. 424. 
Aspatharia (Spathopsis) wissmanni (Ei, v. Martens) 
Plate XX XVII, Figures 1 and 2; Text Figure 92 
Spatha wissmanni E. v. Marrens, 1883, Sitz. Ber. Ges. Naturf. Fr. Berlin, p. 73; 
1894, ‘Conchol. Mitth.,’ ITI, 3, p. 9, Pl. xxxxiv. _ 
Spatha rubens var. wissmanni C. R. Barrerr, 1913, Ann. Soc. Zool. Malacol. 
Belgique, XLVII, (1912), p. 111. Daurzenpere AND GERMAIN, 1914, Rev. Zool. 
Afric., III, 1, p..68 (in part). 
Originally described from the Lubi and Lubilash Rivers, 5° to 6° S. (Wissmann 
Coll.; type locality not designated.) Mulongo, in the Channel leading from Lake 
Kabamba to the Lualaba River (between Kikondja and Ankoro; J. Bequaert Coll.). 
The specimen from Malema recorded by Dautzenberg and Germain is subspecif- 
ically distinct and described below as bangalorum. To this form might also have be- 
longed the isolated valves from.the Upper Congo (O. Baumann Coll.), seen by C. R. 
Beettger. : 
Medje (Lang and Chapin Coll.). 
The most ponderous mussel yet known from the Congo. Young 
to half-grown shells are almost symmetrically elliptical, but with age the 
dorsal margin becomes rather highly arched, curved more than the basal. 
