Reference List of South African Non-marine Mollusca. 159 



The subjoined figure shows Track, microscopica (Krs.), which 

 may very possibly belong to the present Genus, in the centre, with 

 the larger orcula on the left and japonicum on the right. ( x 4f .) 



297. PUPISOMA ORCULA (Benson). [S.A.M.] 



1850 Helix orcula, Bs., A.M.N.H. vi. p. 251. D. 



1853 Pfr., Conch. Cab. p. 357. pi. 136 (1852), f. 18- 



20. D.F. 



Mon. Hel. iii. p. 42. D. 



1855 Nanina orcula, Bs., Gray, Cat. Pulrn. p. 75. D. 

 1886 Pupisoma orcula, Bs., Tryon, Man. of Conch, ii. p. 177. pi. 53, 



f. 67. D.F. 



1909 ,, Hirase,Conch.Mag.iii,4.pl.9,f.30,31. F. 



1912 ,, ,, Bnp., Proc. Mai. Soc. x. p. 45. N. 



Co-types in British Museum. 



Hob. CAPE OF GOOD HOPE. Port Elizabeth (Crawford). Grahams- 

 town (Farquhar). 



NATAL. Pietermaritzburg ; Ntimbankulu ; Dargle ; Edendale ; 

 Game Pass (Burnup). Richmond (Wakefield; Cooper). Karkloof 

 (Taynton). 



TEANSVAAL. Pretoria (Connolly). 



RHODESIA. Victoria Falls (Warren). 



Originally described from India. 



GENUS VALLONIA, Risso, 1826. 



(Hist. nat. Eur. rnerid. iv. p. 101.) 

 Type of Genus, V. rosalia, Risso (pulchella, Miill.). 



298. VALLONIA EXCENTBICA, Sterki. [S.A.M.] 



1850 Helix pulchella, Mull., Bs., A.M.N.H. v. p. 217. L. 



1864 Vallonia minuta, Say, Morse, Journ. Portland Soc. Nat. Hist. 



i, 1. p. 21 (pars.). 

 1893 ,, excentrica, Sterki, Proc. Acad. Nat. Sci. Phila. pp. 252, 



278. pi. 8, f. B, M. D.A. 

 ,, ,, ,, ,, Pilsb., Man. of Conch, viii. p. 249. 



pi. 32, f. 6-9. D.B.F. 



1904 ,, ,, ,, B. B. Woodw., Journ. of Conch, xi. 



p. 82. D. 



