Reference List of South African Non-marine Mollusca, 245 
special synonymy of its own, it appears advisable to allow it to 
maintain an individual existence until further material is available 
for examination. 
Jickeli further included, under contorta; truncata and harpula, 
Fér.; brocchii and hemprichi, Ehrn.; rivularis, Phil.; mareotica 
and spiracea, Parr. in coll.; pyrwm, Poro; and scalata, Merian. 
519, IstporA DIAPHANA (Krauss). 
1848 Physa diaphana, Krs., Siidafr. Moll. p. 84. pl. 5, f.11. DF’. 
1856 A: », Bgt., Rev. et Mag. Zool. viii. p. 236. D. 
ss mn ‘ » Amén. malac. i. p. 175. D. 
1866 A ,, von Mts., Mal. Blatt. xiii. p. 100. N. 
1873 me ,, sow., Conch. Icon. pl. 10, f. 81. DF. 
1885 5 ,», Cless., Conch. Cab. p.282. pl.40,f.12. DP. 
Type in Stuttgart Museum. 
Hab. Natau. Umgeni Valley (Krauss). 
520. Istpora FoRSKALI, Ehrenberg. [S.A.M.] 
1831 Isidora forskalii, Ehrn., Symb. Phys., Evert. 3rd Sp. D. 
1848 Physa wahlbergi, Krs., Siidafr. Moll. p. 84. pl. 5, £.138. DF. 
1856 * " »  Bgt., Rev. et Mag. Zool. viii. p. 240. D. 
_ »  jorskala, Khrn. ,, a3 vili. p. 235. D. 
- e a Me » Amen. imalac, i. p. 174. .D. 
- »  wahlbergr, Krs. ,, a Dp LOO. 2 
ils) 55 eee 5 » ust, .Conch.Cab. (Limn.)p. 71. pl_13; 
£23, 22. OF. 
KS66.. 5, S » von Mts., Mal. Blatt. xiii. p. 100. N. 
1869 rs % » Dohrn, Mal. Blatt. xvi. p.15. WN. 
- , (Isidora) forskalit, Khrn.,von Mts.,Mal. Bliatt.xvi.p.213. N. 
1873 »  walbergit, Sow., Conch. Icon. pl. 8, f. 58. DF’. 
1874 Isidora forskali, Khrn., Jick., Fauna N.-O.-Afr. p. 198. pl. 3, 
f. 3. pl. 7, £1.18. D.R.F. and Synonymy. 
1886 Physa forskalu, Ehrn., Cless., Conch. Cab. p. 320. pl. 39 (1884), 
fee. WORE, 
1897 Isidora forskali, Ehrn., von Mts., D.-O.-Afr.p. 141. pl.1,f£.15. DL’. 
1898 Physa gradata, M. & P., A.M.N.H. i. p; 129. pl: 7, £8. DL. 
1899 TIsidora forskali, Khrn. (=gradata), M.& P.,A.M.N.H.iv.p.193. N. 
1908 e » Neuville & Anthony, Ann. Sci. nat. 
Paris, viii. pp. 271-273. NL. 
Type of forskali in Zool. Mus. Berlin; wahlbergi in Stuttgart 
Museum; gradata in British Museum. 
