14 Richard Hagg. 



var. consohrina Jickeli [50], Sthuhlmann ace. to v. Martens [87]). 

 The Nile (Liebetrut ace. to v. Martens [71] ; var. cor. and var. 

 consohrina). The Upper Nile (Klot-Bey ace. to v. Martens [71]; 

 var. consohrina, R. Hartman ace. to v. Martens [71]; var. conso- 

 hrina, Mettenheimer ace. to Jickeli [54]). The White Nile (Flo- 

 wer [38]). Abyssinia: Tzana Lake (Heuglin and Steudner ace. 

 to Jickeli [54]). Syria (ace. to Jickeli [54]). Palestine (Sommer- 

 ville [126], Kiepert ace. to v. Martens [78]). Caucasus (ace. 

 to Eichwald [33]). 



Suhfossile: Egypte: Fajum (Schweinfurth ace. to v. Mar- 

 tens [83]) and pleistocene strata in England and France. 

 Literature: 



1) Tellina fluminalis Mullkr 98 (p. 205), 42 (p. 3242), 26 (I, p. 106). 

 2) Verms fluminalis (Chemnitz) 19 (p. 319, f. 320). 3) Cyrena flnminalis (MCllkr) 

 33 (p. 210), 8 (p. 79), 69 (p. 348), 78 (p. 61, 66, pi. 1, i. 12-14), 81 (p. 37, 

 pi. 9, f. 56 — 57), 96 (Journ. de Conch, p. 55). 4) Corhicula fluminalis (Mullkr) 

 54 (p. 283, T. XI, f. 4-9), 38 (p. 670), 44 (p. 5). 5) Cyrena consohrina Caillaud 

 16 (II, pi. 61, f. 10—11, Texte IV, p. 263), 24 (p. 221), 71 (p. 14), 45 (p. 290), 

 50 (p. 11, 20, 23, 91). 6) Cyrena consohrina Ferussac 2 (p. 47). 7) Corhicula 

 consohrina Caillaud 87 (p. 118). 8) Corhicula fluminalis (Muller) var. consohrina 

 Caillaud 83 (p. 100), 86 (p. 128). 9) ? Tellina cornea Broccht 54 (p. 283). 

 10) Cyrena cor. Lamarck 23 (VI, p. 274), 22 (II, p. 49, pi. 301, f. 2 a, b), 117 

 (pi. 7, f. 7), 24 (p. 221), 71 (p. 13), 93 (p. 40), 97 (p. 64), 126 (p. 384), 96 

 (Jahrg. 8, p. 415). 11) Cyrena orientalis Lamarck 23 (VI, p. 273). 12) Cijvnta 

 triwaldskyana Zelebor 54 (p. 284). 13) Cyrena saulcyi Bourguinat 10 (II, p. 315, 

 pi. 45, f. 6 — 9). 14) Cyrena crassula Mousson 116 (p. 57). 



16. Unio aegyptiacus Ferussac var. niloticus (Ferussac). 



Long. 73,5 mm. Lat. 42 mm. Grass. 32 mm. 



Hah. 1) El Gerassi (the White Nile). Sand-like bottom. 7 

 specimens without animals with the epidermis well preserved; 

 2) Gebelain. 3 specimens without animals with epidermis; 3) Be- 

 sides 7 specimens with animals and 3 without such from some 

 place not mentioned on the White Nile. 



Geographical disiribution (the whole species): 



Lower Egypt (the main species and var. niloticus), (Caillaud 

 [16], v. Martens [71], R. Hartmann ace. to v. Martens [71], 

 Jickeli [50]). The Nile (Forskal [39], Ehrenberg and Hemprich 

 [32]). Upper Egypt: Assuan (R. Hartmann ace. to v. Martens; 

 var. niloticus [71]), Esne (R. Hartmann ace. to v. Martens; var. 





