160 Annals of the South African Museum. 



Type in coll. Sterki. 



Hob. CAPE OF GOOD HOPE. High Constantia (Benson, 1846). 

 Cape Town (Layard). Wynberg (Lightfoot). Somerset East (Miss 

 Bowker). King Williamstown (Miss Eoss). Grahamstown (Farqu- 

 har). Port Elizabeth (Crawford). 



NATAL. Pietermaritzburg (Burnup). 



TRANSVAAL. Pretoria (McBean). 



Very widely distributed over most parts of the globe. 



Mr. B. B. Woodward has identified specimens from Wynberg, 

 Pretoria, Grahamstown, Port Elizabeth, and Pietermaritzburg as 

 excentrica, and it is probable that the other occurrences of Vallonia 

 in South Africa refer to the same species. Of course, many early 

 reports of pulchella, such as Benson's in 1850, were made long 

 before excentrica was differentiated. 



GENUS HELIX, Linne, 1758. 

 (Syst. Nat., Ed. 10. i. pp. 645, 768.) 



Type of Genus, H. pomatia, Lin. 



SUB-GENUS CEYPTOMPHALUS, Agassiz, 1837. 

 (Nouv. M^m. Soc. Helv. Sci. Nat. i, 2. p. 5.) 



Type of Sub-Genus, H. aspersa, Mull. 



299. HELIX ASPERSA, Miiller. [S.A.M.] 



1774 Helix aspersa, Mull., Verm. ii. p. 59. D. 



1777 hortensis, Pennant, Brit. Zool. iv. p. 136. pi. 84, f . 129. D.F. 



1778 Cochlea vulgaris, Da Costa, Test. Brit. p. 72. pi. 4, f. 1. D.F. 

 1786 Helix aspersa, Mull., Chem., Conch. Cab. is, 2. p. 125. pi. 130, 



f. 1156-58. D.F. 

 1788 ,, Gmel, Syst. Nat., Ed. 13. i, 6. p. 3631. D. 



grisea, Gmel., Syst. Nat., Ed. 13. i, 6, p. 3649. D. 



1797 ,, restitutoris, Humph., Mus. Calonn. p. 60. D. 



1803 ,, aspersa, Gmel., Mont., Test. Brit. ii. p. 407. D. 

 1805 Mull.,Drap.,Hist.Moll.Fr.p.89.pl.5,f. 23. D.F. 



1807 ,, hortensis, Penn., Mat. & Eack., Linn. Trans, viii. p. 208. D. 



1815 ,, aspersa, Brard, Hist. Coq. Paris, p. 7. pi. 1, f. 1. D.F. 

 1826 ,, ,, Lin., Eisso, Hist. nat. Eur. m6rid. iv. p. 63. D. 



1828 . ,, Lam., Stark, Elem. Nat. Hist. ii. p. 58. D. 



1837 ,, (Pomatia) adspersa, Beck, Index Moll. p. 44. 



1840 ,, (Acavus) aspersa, Mull., Gray, Turton's Man. p. 128. pi. 4, 

 f. 35. D.F. 



