16 Richard Hagg. 



bara and Bahr Salam) dead shells (Piroth ace. to Jickelii [55]). 

 Bahr-el-Ghazal (Schweinfurth ace. to v. Martens [77]). Abyssinia: 

 southern part (Heuglin and Steudner ace. to v. Martens [72]). 

 Literature: 



1) Spatha caillaudi v. Martens 71 (p. 9), 72 (p. 102), 77 (p. 34), 80 (p. 43), 

 117 (p. 7, 1 1), 50 (p. 92), 54 (p. 259, T. VIII, f. 1), 114 (p. 21), 55 (p. 339), 

 129 (1256), 87 (p. 118). 2) Anodauta rubens Caillaud 16 (Atlas II, pi. 60, f. 12, 

 Texte IV, p. 262), 2 (p. 39), 36 (p. 11). 3) Spatha chaiziana 54 (p. 259). 



19. Spatha hartmanni v. Martens. 

 Long. 112,5 mm. Lat. 57 mm. Crass. 31,5 mm. 

 Hab. Between ed Dueim and Groz Abu-G-omr. 



Geographical distribution: 

 Senaar (R. Hartmann ace. to v. Martens [71]). Nuer-Land: 

 Bahr Zeraf (Marno ace. to Jickeli [54]). West Africa: Ngadda 

 River (G. Rohlfs ace. to Jickeli [54]). 

 Literature: 



1) Spatha hartmanni v. Martens 71 (p. 10), 75 (p. 74), 80 (p. 43), 52 (p. 

 69), 54 (p. 263, T. VIII, f. 2). 2) ? Mytilus cygneus Brocchi 54 (p. 263). 



20. Aetheria caillaudi Ferussac. 

 Long. 119 mm. Lat. 81 mm. 



Hab. 1) El Gerassi (the White Nile). 60 Engl, miles south 

 of Khartoum. One shell; 2) place not mentioned on the White 

 Nile. Two shells. 



Geographical distribution: 

 The Nile: from the first cataract and thence up the River 

 (ace. to v. Martens [71]). The White Nile (Lepsius ace. to Jickeli 

 [54], Werne ace. to v. Martens: var. tubifera [71]), Schwein- 

 furth ace. to v. Martens [80]). The Blue Nile: as far as Fazokl 

 (ace. to v. Martens [71]). Harasa (between Atbara and Bahr 

 Salam) (Piroth ace. to Jickeli [55]). Abyssinia (ace. Morelet 

 [93]). Senegal (ace. to v. Martens [71]). 

 Literature: 



a) The main species 36 (p. 350), 128, 16 (II, pi. 61, f. 1, 2, 3, Texte II, p. 

 94, 222, IV, p. 261), 22 (II, p. 121), 110 (p. 144, pi. 6), 23 (VI, p. 596), 71 (p. 9), 

 93 (p. 40), 54 (p. 281), 55 (p. 339); b) The var. tubifera Sowerby 1) Aetheria 

 caillaudi Ferussac var. tubifera Sowerby 128 (p. 532, pi. 19), 23 (VI, p. 596), 71 

 (p. 9), 54 (p. 282). 2)? Aetheria corteroni Micheein 91 (I, p. 1, pi. 1, f. 1, 2). 



