256 Bulletin American Museum of Natural History [Vol. LIII 
Nyassomelania leia BouRGUIGNAT, 1889, Bull. Soc. Malacol. France, VI, p. 31, 
Pl. 1, figs. 9-10. 
Nyassia magnifica BouRGUIGNAT, 1889, Bull. Soc. Malacol. France, VI, p. 16, 
Pl. 11, figs. 5-6. 
Melania nodicincta DourRNn, 1865, Proc. Zool. Soe. London, p. 234. E. A. Smirs, 
1877, op. cit., p. 715, Pl. yxxv, figs. 11-12. Also in the upper part of the Shire River, 
according to Dohrn. 
Nyassia nodulosa BoURGUIGNAT, 1889, Bull. Soc. Malacol. France, VI, p. 10= 
Melania polymorpha E. A. Smiru, 1877, Proc. Zool. Soc. London, Pl. uxxv, fig. 8 
(only). | ; 
Melania nyassana E. A. Smitu, 1877, Proc. Zool. Soc. London, p. 715, Pl. uxxv, 
fig. 1 (only, according to Bourguignat). 
Nyassia paradoxa BouRGUIGNAT, 1889, Bull. Soc. Malacol. France, VI, p. 14, 
Pl. 1, figs. 3-4. 
Melania (Nyassia) pergracilis E. v. Martens, 1897, ‘Deutsch Ost Afr., IV, 
Beschalte Weichth.,’ p. 199, Pl. v1, fig. 48. 
. Melania polymorpha E. A. Smiru, 1877, Proc. Zool. Soc. London, p. 714, Pl. 
LXXV, fig. 4 (only, according to Bourguignat). 
Nyassella pulchra Boureuianat, 1889, Bull. Soc. Malacol. France, VI, p. 19, 
Pl. 1, figs. 17-18. 
Melania pupiformis E. A. Smrru, 1877, Proc. Zool. Soc. London, p. 713, PI. 
LKxyy heeds: 
Nyassia riwularis BourauIaNaT, 1889, Bull. Soc. Malacol. France, VI, p. 9= 
Melania polymorpha HK. A. Smiru, 1877, Proc. Zool. Soc. London, Pl. uxxv, fig. 6 
(only). 
Melania simonsi EK. A. Smrru, 1877, Proc. Zool. Soc. London, p. 713, Pl. uxxv 
fis -3; 
Micronyassia singularis BourRGuIGNAT, 1889, Bull. Soc. Malacol. France, VI, 
p. 29, Pl. 1, figs. 7-8. 
Nyassella smithi BouRGUIGNAT, 1889, Bull. Soc. Malacol. France, VI, p. 18, PI. 
1, figs. 15-16. ; 
Micronyassia smithi Bourauienat, 1889, Bull. Soc. Malacol. France, VI, p. 26, 
Pl. 1, figs. 3-4. 
Nyassella tayloriana BourGuIGNAT, 1889, Bull. Soc. Malacol. France, VI, p. 
23, Pl. 1, figs. 25-26. 
Nyassia thaumasta BOURGUIGNAT, 1889, Bull. Soc. Malacol. France, VI, peli. 
Nyassomelania truncatelliformis BourRGUIGNAT, 1889, Bull. Soc. Malacol. France 
VI, p. 31, Pl.1; figs. 11-12. 
Melania turritispira E. A. Smirn, 1877, Proc. Zool. Soc. London, p. 713, Pl. 
LXXV, fig. 14 (only, according to Bourguignat). 
Melania woodwardi E. A. Smrru, 1893, Proc. Zool. Soe. London, p. 638, Pl. urx, 
fig. 11. 
) 
2) 
Melanoides tuberculata (O. F. Miiller) 
Plate XXI, Figures 1-7 
Nerita tuberculata O. F. Mtitier, 1774, ‘Verm. Terr. Fluv. Best, Tp: -191 
(type locality: Coast of Coromandel, India). 
Melanoides fasciolata Ouivier, 1804, ‘Voyage dans Empire Othoman,’ IT, p. 40, 
footnote; (an x1t) Atlas, IT, Pl. xxx1, fig. 7 (type locality: Alexandria, Egypt) 
