826 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



NODULARIA JICKELI Simpson. 



" ? Unio teretiusculus Jickeli,' Faun. Moll. N. O. Af., 1874, p. 276, pi. xi, figs. 3, 3a, 

 Sb. 



Northeast Africa. 



NODULARIA ACUMINATA H. Adams. 



* Unio acmninatiis H. Adams, Pr. Zool. Soc. Lond., 1866, p. 376. — *P^tel, Conch. 



Sam., Ill, 1890, p. 143.— * Smith, Ann. and Mag., X, 1892, p. 127, pi. xii, fig. 

 12.— * VON Martens, Besch. Dents. Ost-Af., 1897, p. 227, pi. vii, figs. 11, 12. 



Lake Albert Nyanza. 



NODULARIA DEMBEiE Reeve. 



*Z7wio demiece Keeve, Conch. Icon., XVI, 1865, pi. xxix, fig. 153. — *Jickeli, 

 Faun. Moll. Af., 1874, p. 275, pi. ix, figs. 3-4. — *Eossmassler, Bull. Soc. 

 Mai. It., XIII, 1888, p. 84.— "P.etel, Conch. Sam., Ill, 1890, p. 150. 



Abyssinia. 



NODULARIA LOURDELLI Bourguignat. 



"" Unio lourdelU Bourguignat, Bull. Soc. Mai. Fr., IV, 1887, p. 271. — * Sjmith, Ann. 

 and Mag., X, 1892, p. 128, pi. xii, figs. 13-15. — * von Martens, Beach. Deuts. 

 Ost-Af., 1897, p. 228. 



Victoria Nyauza Lake. 



NODULARIA ABYSSINICA von Martens. 



*Unio abyssinicus voN Martens, Mai. BL, XIII, 1866, p. 102; *XIV, 1867, p. 17.— 

 *JiCKELi, Faun. Moll. N. O. Af., 1874, p. 278, pi. ix, fig. 5; x, fig, 10.— 

 * P.ETEL, Conch. Sam., Ill, 1890, p. 143. 



Abyssinia. 



NODULARIA DIMINUTA Lea. 



* Unio diminiitis Lea,^ Pr. Ac. N. Scl. Phila,, III, 1859 p. 151 ; * JL Ac. N. Sci. Phila., 



1860, p. 254, pi. XXXIX, fig. 134; *Obs., VII, 1860, p. 72, pi. xxxix, fig. 134.— 

 *" Reeve, Conch. Icon., XVI, 1865, pi. xxviii, fig. 141. — ■ Jickeli, Faun. Moll. 

 Af., 1874, p. 280.— ^P.etel, Conch. Sam., Ill, 1890, p. 150. 



^ Margaron (Unio) diminuttis Lea, Syu., 1870, p. 31. 



"* Unio f/ratiosus P.etel, Conch. Sam., Ill, 1890, p. 154. 



East Africa. 



The following unfigured species are said to belong here: 



"' Unio mandinguoriim Eochebrune, Bull. Soc. Phil., 7th ser., VI, 1882, p. 34. 



Bakoy, High Senegal. 



* Unio zeyheri Menke, Zeits. fiir Mai., VI, 1848. p. 28. 



South Africa. 



iNot teretiusculus Philippi, but a larger elongate solid rhomboid form, which is 

 certainly distinct. I therefore name it in honor of Jickeli. 



2 So in the first published description, probably a typographical error. I am not 

 certain as to the relationships of the species, but presume that it belongs here. 



