386 Bulletin American Museum of Natural History [Vol. LIII 
Unio soleilletti BouRGUIGNAT, 1885, ‘Moll. Choa,’ p. 39. Lake Haussa, Abyssinia. 
Cexlatura sordida (A. T. de Rochebrune). See p. 408. 
Celatura (Levirostris) stagnorum (Dautzenberg). See p. 404. 
Celatura stagnorum bome Pilsbry and Bequaert. See p. 405. 
Celatura stanleyvillensis Pilsbry and Bequaert. See p. 403. 
Parreysia stuhlmanni (EK. v. Martens). See p. 390. 
Unio subamygdalinus Drovrt, 1895, Journ. de Conchyl., XLIII, p. 35. Right 
bank of the Senegal River, 2 kilometers north of Bakel. 
Unio teretiusculus Putuipri1, 1847, ‘Abbild. Beschr. Conchyl.,’ III, p. 45, Unio, 
Pl. 111, fig. 3 = Nodularia teretiuscula Simpson, 1914, ‘Descript. Cat. of Naiades,’ p. 981. 
Margarita (Unio) cailliaudi ‘‘ Férussac”’ I. Lea, 1838, ‘Synopsis of Naiades,’ 2d Ed., 
p. 24 (without description). Unio cailliaudi “ Férussac” E. v. Martens, 1866, 
Malakoz. Blatter, XIII, p. 13 (with description). Unio lithophagus ‘“Ziegler”’ 
Puruipri, 1847, ‘Abbild. Beschr. Conchyl.,’ III, p. 45 Gn the synonymy of U. tere- 
tiusculus). White Nile. This species has been recorded from Lake Albert but its 
occurrence there is doubtful. 
Nodularia teretiuscula var. pallary: Lonestarr, 1914, Journ. Linn. Soc. London, 
Zool., XXXII, p. 256 = Nodularia teretiuscula var. lithophaga Patuary, 1902, Bull. 
Inst. Egyptien, (4) III, p. 95 (not of Ziegler). Egypt. 
Unio traversiti PoLLONERA, 1888, Bull. Soc. Malacol. Italiana, XIII, p. 85, PI. 
i, figs. 14 and 15. Simpson, 1914, ‘Descript. Cat. of Naiades,’ p. 577. Hauash 
River, Abyssinia. Placed by Simpson in Cafferia. 
Unio tricolor Kiistmr, 1848, in Martini and Chemnitz, ‘Syst. Conch. Cab., IX, 
2, Perlflussmuscheln,’ p. 156, Pl. xiv, figs. 19 and o. Nile River, Egypt. Eeapacn 
(1914, ‘Descript. Cat. of Naiades,’ p. 1168) refers this as a variety to the Oriental 
Lamellidens marginalis (Lamarck), but we do not know whether this is correct. 
Unio (Grandidieria) tsadianus E. v. Martens, 19038, Sitz. Ber. Ges. Naturf. 
Fr. Berlin, p. 8=Grandidieria tsadiana Simpson, 1914, ‘Descript. Cat. of Naiades,’ p 
1060. Southern shore of Lake Chad. This appears to be a Parreysia. 
Parreysia ujijiensis (Crosse). See p. 394. 
Unio verrauxi “Charpentier”? Ktstmer, 1848, in Martini and Chemnitz, ‘Syst. 
Conch. Cab., IX, 2, Flussperlmuschlen,’ p. 150, Pl. xu111, fig. 6. Zoetendal Valley, 
Cape Colvnss 
Unio verreawianus I. La, 1856, Proc. Ac. Nat. Sci. Philadelphia, VIII, p. 94; 
1857, ‘Observ. Unio,’ VI, p. 21, Pl. xxvu, fig. 16=Margaron (Unio) verreauxianus 
I. Lea, 1870, (ses male of Nalades,’ 4th Ed., p. 36. Cape of Good Hope. This is 
distinct from the preceding species. 
Nodularia verrucosa ¥. Haas, 1910, Nachrichtsbl. Deutsch. Malakoz. Ges., XLII, 
p. 99. Simpson, 1914, ‘Descript. Cat. of Naiades,’ p. 1048. Nile. Placed among the 
doubtful Nodulariz by Simpson. 
Unio vignardt Pauuary, 1924, Mém. Inst. d’Egypte, VII, 1, p. 40, Pl. rv, figs. 
16 and 18. In prehistoric deposits at Sebil near Kom Ombo, Upper Egypt. 
Unio vincket Bourguignat. See p. 409. 
Unio vissert Bourguignat. See p. 409. 
Unio zambesiensis Preston, 1905, Proc. Malacol. Soc. London, VI, 5, p. 301, 
fig. 1 (on p. 300). Simpson, 1914, ‘Descript. Cat. of Naiades,’ p. 724. Zambezi 
River, just above Victoria Falls. Placed doubtfully in Unio by Simpson. 
Umio zeyherti MENKE, 1848, Zeitschr. f. Malakoz., V, p. 28. Cape of Good Hope. 
