238 Annals of the South African Museum. 



1872 Planorbis riippelli, Dkr., Morel., Ann. Mus. Geneva, iii. p. 207. N. 

 1874 ,, Jick., Fauna N.-O.-Afr. p. 211. pl.7, 



f. 17, 18. D.F. 

 1883 ,, Bgt., Ann. Sci. nat. Paris, xv. pp. 100, 



127. D. 

 1900 ,, Krs., Junod, Bull. Soc. Vaudoise, xxxv. 



p. 279. L. 

 1908 ,, ,, Dkr., Neuville & Anthony, Ann. Sci. nat. 



Paris, viii. pp. 249-253. N.F. 

 Type in Zool. Mus. Berlin. 

 Hab. LORENZO MARQUES. Eikatla (Junod). 

 Described from Abyssinia. 



Jickeli (1874) remarks : " I could not unite Plan, salinarum, 

 Morel., from West Africa, with riippellii ; according to the figure in 

 Voy. Wellwitsch, the former differs through less height combined 

 with greater diameter. On the other hand, our Abyssinian Planorbis 

 appears to me very nearly allied to Plan. i pfeiffe,ri, Krs. ; comparison 

 with examples of this species, which I do not possess, ought to 

 produce synonymy of the two." 



503. PLANORBIS SALINARUM, Morelet. 



1868 Planorbis salinarum, Morel., Voy. Welwitsch, Moll. p. 85. pi. 5, 



f. 4. D.F. 

 1904 von Mts., Die Kalahari, p. 756. N. 



Type in British Museum. 



Hab. BECHUANALAND. Lake Ngami ; Sodanna (subfossil, Pas- 

 sarge). 



Described from Dungo saltings, Angola. 



GENUS SEGMENTINA, Fleming, 1818. 

 (Encyc. Brit., Suppl. to 4th, 5th, and 6th editions, iii. p. 309.) 



Type of Genus, Nautilus lacustris, Lightfoot (nitida, Miill.). 



504. SEGMENTINA EMICANS, Melv. & Pons. 



1892 Planorbis (Segmentina) emicans, M. & P., A.M.N.H. x. p. 241. 



pi. 3, f. 13. D.F. 

 Type in British Museum. 

 Hab. CAPE OF GOOD HOPE. Port Elizabeth (Farquhar). 



