90 Annals of the South African Museum. 
(Preuss. Exp. nach. Ost.-Asien., 1867, Zool. ii, p. 259. Type 
obscurata, Ad. & Rve.), and Afrorhytida, Méllendorff (Conch, Cab.,: 
1903, p. 61. Type knysnaensis, Pfr.). 
Very little is known of most of the animals, and subdivision of the 
shells, on conchological grounds alone, is by no means satisfactory. 
Future research will doubtless provide anatomical grounds for 
reclassification, and establish the suggested subgenera on a per- 
manent basis. Meanwhile, to facilitate reference, it is more con- 
venient to place the species in alphabetical sequence under Natalina. 
112. Natauina arcutTa, Melv. & Pons. 
1907 Natalina arguta, M. & P., A.M.N.H. xix. p. 98. ak 6,173, “DF, 
Type in British Museum. 
Hab. Carr or Goop Hors. East London (Burnup). 
113. NaTALINA BEYRICHI (von Martens). 
1890 Aerope beyrichi, von Mts., Sitz.-Ber. Ges. Nat. Fr. Berlin, 
Di So. wl, 
1894 i 5 Conch. Mitth, iii, 3. p.1. D. 
1897 * - Archiv. f, Naturg. lxiii, i. p. 38. 
pl. 6, £. 1-3. D.#. 
1903 Natalina. beyrichs 9 Mildff.; Conch. Cab. p. 21. pl. 4, 
£1 =3 hu si, 
Type in Zool. Mus. Berlin, 
Hab. Care or Goop Horst. Pondoland (Beyrich). 
114. NaTauiIna CAFFRA (Férussac). [S.A.M.] 
1821 Helix cafra, Fér., Tabl., Syst. Moll. pt. 3. p. 29 (or 25.) N. 
1838 a » Desh., Hist. Nat. An.s. Vert. viii. p. 107. D. 
1848 Helix caffra ,, Krs., Siidafr. Moll. p. 75. N, 
. >. Ping Mion; Heli. p40. BD; 
1850 Helix cafra ,, Desh., Hist. Nat. Moll. i. p. 198. pl. 9a, 
fi gO. 
1851 Helix caffra ,, Rve., Conch. Icon. pl. 40, £.179. DF. 
1851552. >, Pfr., Conch. Cab. p. 52. pl. 74, f. 1-3. DF. 
1880 Rhytida caffra, Fer, .. Gibb., Journ. of Conch. iii, p. 95. D. 
1885 Aerope a », Tryon, Man. of Conch. i. p. 131, pl. 25, 
f. 1330?’ 
1890 —SC#—=>»"= "§ » Pilsb., Proc. Acad. Nat. Sci. Phila. p. 41. 
pl. 1,fA-F.. A.B. 
