822 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XXH. 



NODULARIA NILOTICA var. GERRARDI von Martens. 



*Unio f/errardi VON MARTENS, Bescli. Ost-Af., 1897, p. 223, pi. v'n, fig. 5. 



Nile system; Lake Tanganyika; Senegal and High Ca/amance 

 (Viguon). 



NODULARIA BAGDADENSIS Bourguignat. 1 



*Unio baydadensis BOURGCIGXAT, Test. Nov. Saulc., 1852, p. 30; 'Cat. Rais., 1853, 



p. 78, pi. iv, figs. 4-6. 

 *Margaron (Unio) bagdadensis LKA, Syn., 1870, p. 46. 



Bagdad, on the Tigris Kiver. 



NODULARIA RANDABELI Bourguignat. 2 



* Unio randabeli BOCRGUIGXAT, Un. and Ir. Tan., 1886, p. 22; "Icon. Mai. Tan., 



1888, pi. xxi, figs. 3, 4.* PASTEL, Conch. Sam., Ill, 1890, p. 165. 



Lake Tanganyika. 



t NODULARIA ESSOENSIS Chaper. 



Tnio essoensis CHAPKK, Bull. Soc. Zool. Fv.,X. 1885, p. 481, pi. xi, figs. 8, 9. 

 *P.ETEL, Conch. Sam., Ill, 1890, p. 152. 



Assini, west coast of Africa. 



NODULARIA DECAMPSIANA Wattebled. :! 



*Uniodecamp8ianii8 WATTEBLED, Jl. de Conch., XXXII, 1884, p. 132, pi. vn, fig. 1. 

 *P,ETEL, Conch. Sam., Ill, 1890, p. 150. 



* I'nio campsiamis P.ETEL, Conch. Sam., Ill, 1890, p. 147. 



Western Soudan. 



NODULARIA BELLAMYI Jousseaume. 



Tharaon'ui. bcllamyi JOUSSKAUMK, Bull. Soc. Zool. Fr., XI, 1886, p. 486, pi. xll, figs. 

 la, Ib. 



Faraba, on the Niger; High Senegal. 



NODULARIA RENEA Jousseaume. 



*Renens renews JOUSSEAUMK, Bull. Soc. Zool. Fr., XI, 1886, p. 482, pi. xii, figs. 

 4a, I //. 



*Reneus faidherli JOCSSEAUMK, Bull. Soc. Zool. Fr., XI, 1886, p. 483, pi. xn, figs. 

 5, 5a. 



Niger at Kayon; Senegal Kiver; High Senegal. 



'This appears from the figures and description to be a member of the .Etjyptlaca 

 group of Nodularla. It is possible tbat it came from Asia Minor, but more likely 

 that it is au African species. The Unio eucyphus of Bourguignat, which he credits 

 to this region, is believed by Lea to be the l~. wgijptiacus of Cailliaud, aud I agree 

 with him. Unio laydadcnsis may be merely a peculiar form of the same thing. 



2 This may possibly be distinct from J\". vilolica, or it may only be an oddly formed 

 specimen. 



S I can not bo positive as lo the systematic position of this species, but it probably 

 belongs here. 



