Land- & Fresh-water Mollusca. 3 



Subfossile: Egypt: Fajum (Schweinfurth ace. to v. MAR- 

 TENS [83]). 



Literature: 



1) Cyclostoma bidlmoides Olivier 99 (II, p. 39, III, p. 68, Atlas II, pi. 31, 

 f. G), 117 (pi. 2, f. 28). 2) Paludina bidlmoides (Olivier) 16 (H, pi. 60, f. 6, Texte 

 IV, p. 264), 115 (p. 25), 23 (VIII, p. 517), 107 (Vol. 2,' p. 12, pi. 2, f. 13), 90 

 (p. 91), 61 (p. 32, pi. 7, i 11 — 17), 40 (p. 1148), 28 (p. 117), 29 (p. 233), 41 (583), 

 70 (p. 203), 93 (p. 39, 40, 41, 44, 96), 75 (p. 85), 76 (p. 153), 80 (p. 43), 50 

 (p. 11). 3) Bithinia bidlmoides (Olivier) 9 (I, p. 183). 4) Bithynia bidlmoides 

 (Olivier) 57 (p. 61). 5) Cleopatra bidlmoides (Olivier) 54 (p. 240, T. VII, f. 31), 

 13 (p. 22), 83 (p. 100), 84 (p. 105), 112 (p. 80), 113 (p. 204), 87 (p. 116), 44 

 (p. 5). 6) Paludina bidlmoides Ferussac 36 (p. 11). 7) Paludina bidlmoides Lam. 

 126 (p. 382). 8) ? Helix tentacidata Brocchi (fide Jickeli) 54 (p. 241). 9) Cyclo- 

 stoma yalllardotll Bourguinat 9 (I, p. 183, pi. 8, f. 5—7), 70 (p. 203). 10) Me- 

 laiiia aegyptica Benson 111 (XII, spec. 227), 70 (p. 203), 15 (I, p. 41), 57 (p. 65). 

 11) Paludina vexlllata Parreyss 70 (p. 203), 41 (p. 583). 12) Bithynia vexlllata 

 Parreyss 57 (p. 61). 13) Paludina trifasciata Parreyss 70 (p. 203), 41 (p. 583). 

 14) Paludina nigra Caillaud 41. (p. 583). 15) Paludina pallida Caillaud 41 (p. 

 583). 16) Paludina kotschyana Caillaud 41 (p. 583). 



3. Cleopatra verreauxiana (Bourguinat). 



Alt. 12,5 mm. Lat. 7,5 mm. 



Hab. Mahmudia (White Nile). In mud on the depth of 1 

 metre together with the preceding species. 15 dead specimens. 

 Geographical distribution: 



The Nile (Verreaux ace. to Jickeli [54], Stuhlmann ace. to 

 v. Martens [87]). The White Nile (Schweinfurth ace. to v. Mar- 

 tens [80]). Syria (Parreyss ace. to Jickeli [54]). 



Literature: 



i 



1) Bithinia verreauxiana Bourguinat 9 (I, pag. 181, pi. 20, f. 25 — 27). 

 2) Cleopatra verreauxiana (Bourguinat) 41 (p. 659), 93 (p. 39), 57 (p. 61), 80 (p. 

 43), 54 (p. 242), 13 (p. 26), 87 (p. 117). 3) Paludina aegyptiaca Muhlfeldt 54 

 (p. 242). 



4. Bithynia boissieri (Charpentier). 



Alt. 10 mm. Lat. 6,1 mm. 



Hab. Mahmudia (White Nile). In mud on the depth of 

 1 metre. 



Geographical distribution: 

 The Nile (ace. to Frauenfeld [40]. Dubious ace. to Jickeli [54]). 

 This species is consequently new for the White Nile. 



