234 Annals of the South African Museum. 



Smith (1904) remarks that L. africana, alexandrina, debaizei, 

 jouberti, laurcnti, and lavigeriana, Bgt., are probably all forms of 

 natalensis, but Pallary (Mem. Inst. Egypt., 1909, vi, 1. p. 47) con- 

 siders alexandrina ( = natalensis, Auctt., nee Krs.) to be distinct. 



var. EXSEETA, von Martens. 



1866 Limnceus natalensis, Krs., var. exsertus, von Mts., Mai. Bliitt. 



xiii. p. 101. pi. 3, f. 8, 9. D.F. 

 1874 Liinncea natalensis, Krs., var. exserta, von Mts., .Tick., Fauna 



N.-O.-Afr. p. 191. D. 



1883 ,, exserta, Bgt., Ann. Sci. nat. Paris, xv. pp. 1)0, 125. N. 

 Described from Abyssinia. 



var. OROPHILA, Morelet. 



1868 Limncca orophila, Morel.,Voy.Welwitsch,Moll.p.87.pl.7,f.4. D.F. 

 1874 ,, natalensis, Krs., var. orophila, Morel., Jick., Fauna 



N.-O.-Afr. p. 191. pi. 3, f. 1. DM. 

 Described from Benguela, and also recorded from Abyssinia. 



492. LlMN^A SUBTRUNCATULA, Bottger. 



1910 Linmcea subtruncatula, Bttg., Abb. Senckenb. Naturf. Ges. 



Frankfurt, xxxii. p. 451. pi. 28, f. 17. D.F. 

 Type in Senckenberg Mus. Frankfurt. 

 Hab. DAMARALAND. Gobabis (subfossil, Hermann). 

 Founded on three specimens. 



493. LIMN^A TRUNCATULA (Miill.). [S.A.M.] 



1774 Buccinum truncatulum, Miill., Verm. ii. p. 130. D. 



1789 Bulimus truncatus, Brug., Enc. Meth. Vers, i. p. 310. D. 



1801 Limneus minuta, Drap., Tabl. Moll. Fr. p. 51. D. 



1803 Helix fossaria, Mont., Test. Brit. ii. p. 372. pi. 16, f. 9. D.F. 



1821 Limnceus minutus, Drap., C. Pfr., Syst. Anordn. d. deutsch. L. 



u. W.-Schneck. p. 93. pi. 4, f. 27. D.F. 

 1829 Lymncea minuta, Drap., Schubert & Wagner, Conch. Cab. xii. 



p. 182. pi. 235, f. 4134, 5. D.F. 

 1840 Limnceus truncatulus, Miill., Gray, Turton's Manual, p. 240. 



D. and Synonymy. 

 1855 Limncea truncatula, Miill., Moq.-Tand., Hist. Nat. Moll. Fr. ii. 



p. 473. pi. 34, f. 21-24. D.F. 

 1862 Limnceus truncatulus, Miill., Kiist., Conch. Cab. p. 17. pi. 3, 



f. 24-27. D.F. 



