234 Annals of the South African Museum. 
Smith (1904) remarks that L. africana, alexandrina, debarzet, 
jouberti, lawrenti, and lavigeriana, Bgt., are probably all forms of 
natalensis, but Pallary (Mém. Inst. Egypt., 1909, vi, 1. p. 47) con- 
siders alexandrina (=natalensis, Auctt., nec Krys.) to be distinct. 
var. EXSERTA, von Martens. 
1866 Limneus natalensis, Krs., var. exsertus, von Mts., Mal. Blatt. 
mid. pp. LOL. pled; fC tee pee 
1874 Limnea natalensis, Krs., var. exserta, von Mts., Jick., Fauna 
N.cOs Ate pie 190. ne 
1883 a exserta, Bgt., Ann. Sci. nat. Paris, xv. pp. ¥0, 125. N. 
Described from Abyssinia. 
var. OROPHILA, Morelet. 
1868 Limnea orophila, Morel., Voy. Welwitsch, Moll.p.87.pl.7,f£.4. DF. 
1874 at natalensis, Krs., var. orophila, Morel., Jick., Fauna 
N.-O)-Afre puigl plow ke De. 
Described from Benguela, and also recorded from Abyssinia. 
492, LIMNHA SUBTRUNCATULA, Bottger. 
1910 Limnea subtruncatula, Bttg., Abh. Senckenb. Naturf. Ges. 
Prankfunh, axxufps 405 pl. 285-4. 17. De. 
Type in Senckenberg Mus. Frankfurt. 
Hab. Damaratanpd. Gobabis (subfossil, Hermann). 
Founded on three specimens. 
493. Limna#A TRUNCATULA (Mill.). [S.A.M.] 
1774 Buccinum truncatulum, Mull., Verm. ii. p. 1380. D. 
1789 Bulimus truncatus, Brug., Ene. Méth. Vers, i. p. 310. D. 
1801 Limneus minuta, Drap., Tabl. Moll. Fr. p. 51. D. 
1803 Helix fossaria, Mont., Test. Brit. ii, p. 372. pl. 16, £.9. DF. 
1821 Limneus minutus, Drap., C. Pir., Syst. Anordn. d. deutsch. L. 
u. W.-Schneck. p. 93. pl. 4, £.27. DF. 
1829 Lymnea minuta, Drap., Schubert & Wagner, Conch, Cab. xii. 
p. 182. pl. 235, f. 4134, 5. DF. 
1840 Limneus truncatulus, Miull., Gray, Turton’s Manual, p. 240. 
D. and Synonymy. 
1855 Limnea truncatula, Mill., Moq.-Tand., Hist. Nat. Moll. Fr. ii. 
p. 473. pl. 34, f. 21-24. DF. 
1862 Limneus truncatulus, Miill., Kiist., Conch. Cab. p. 17. pl. 3, 
{£.24-27. DF. 
