1927] = —- Palsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 427 
Brazzxa eximia Bourauienat, 1886, ‘Nouv. Malacol., I, Un. et Irid. Tanganika,’ 
p. 57; 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xxrx, fig. 5. 
Brazzexa jouberti Bourcuienat, 1886, ‘Nouv. Malacol., I, Un. et Irid. Tanganika,’ 
p. 48. 
Brazzexa lavigeriana BourGuienat, 1886, op. cit., p. 53. 
Brazzxea moineti BOURGUIGNAT, 1886, op. cit., p. 47. 
Brazzxa newcombiana BouURGUIGNAT, 1886, op. cit., p. 55. 
Brazzxa randabeli BouRGUIGNAT, 1886, op. cit., p. 46. 
Brazzxa ventrosa BOURGUIGNAT, 1886, op. cit., p. 45; 1888, ‘Iconogr. Malacol. 
Tanganika,’ Pl. xxix, fig. 4. Simpson, 1914, ‘Descript. Cat. of Naiades,’ p. 1374. 
Lake Tanganyika: originally described from the lake without more definite 
locality; Kibanga (W. A. Cunnington Coll.); Burton Gulf; near the mouth of the 
Luandazi River. 
Subgenus Moncetia Bourguignat 
Moncetia BOURGUIGNAT, 1885, ‘Esp. me ouv. Ouk. Tanganika,’ p.34. Monotype: 
Moncetia anceyi Bourguignat. 
There appears to be but one species from Lake Tanganyika. 
Aspatharia (Moncetia) lavigeriana (Bourguignat) 
Moncetia lavigeriana BouRGUIGNAT, 1886, ‘Nouv. Malacol., I, Un. et Irid. Tan- 
ganika,’ p. 60; 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xxx, fig. 6. 
Spatha (Moncetia) lavigerina Bourguignat. Simpson, 1900, Proc. U.S. Nat. Mus., 
XXII, p. 901; 1914, ‘Descript. Cat. of Naiades,’ p. 1346. 
Moncetia anceyi BouRGUIGNAT, 1885, ‘Esp. Nouv. Ouk. Tanganika,’ p. 35; 
1888, ‘Iconegr. Malacol. Tanganika,’ Pl. xxx, figs. 1-3. E. v. Martens, 1897, 
‘Deutsch Ost Afr., IV, Beschalte Weichth.,’ p. 258. Ancry, 1907, Bull. Scientif. 
France et Helga (5) TX, pp. 258 and 270. 
Spatha (Moncetia) anceyi GERMAIN, 1909, Arch. Zool. Expér. Gén., XLI, p. 50. 
Simpson, 1900, Proc. U.S. Nat. Mus., XXII, p. 901; 1914, ‘ Descript. Cat. of NM aiadoas 
p. 1345. 
Moncetia bridouxi BourGuienat, 1886, ‘Nouv. Malacol., I, Un. et Irid. Tan- 
ganika,’ p. 65;. 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xxx, fig. 5. 3 
Moncetia jouberti BourcuIGNAT, 1886, ‘Nouv. Malacol., I, Un. et Inid. Tan- 
ganika,’ p. 63; 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xxx, fig. 4. 
Moncetia moineti BouRGUIGNAT, 1886, ‘Nouv. Malacol., I, Un. et Irid. Tan- 
ganika,’ p. 61; 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xxx, fig. 7. 
Spatha (Moncetia) monieti Bourguignat. Simpson, 1900, Proc. U.S. Nat. Mus., 
XXII, p. 901. : 
Spatha (Moncetia) moineti Bourguignat. Srmpson, 1914, ‘Descript. Cat. of 
Naiades,’ p. 1345. 
Moncetia rochebruniana Boureuienat, 1886, ‘Nouv. Malacol., I, Un. et Inid. 
Tanganika,’ p. 62; 1888, ‘Iconogr. Malacol. Tanganika,’ Pl. xxx, fig. 8. 
Lake Tanganyika: originally described from the lake without more definite 
locality; Ubuari Peninsula; on the western shore (Guillemé Coll.). 
MUTELA Scopoli 
Mutela Scorout, 1777, ‘Introductio ad Historiam Naturalem,’ p: 397. Monos 
type: Mytilus dubius Gmelin = = Adanson’s ‘Le Mutel.” 
