On new Fre.Onoder Shelh from Japan. 159 



Daunus tasmanicp. 



Centrotus tasiumire, Fairm. Ann. Soc. Enf. Fr. (2) iv. p. 51?, pi. iii. 



tig-. 15(1846), 

 Daunas tasmanice, Gocling (part.), Proc. Linu. Soc. N.S.W. xxviii. 



p. 31 (1903). 

 Centruchoides tasmanice, Buckt. Monogr. Membrac. p. 227, pi. 1. fig. 



(1903). 



Hab. Tasmania, Australia. 



Daunus vitta. 



Centrotus vitta, Walk. Li.st Horn. ii. p. 620 (1851), 



Oxyrhachis contvrta, Walk. Ins. Saund., Horn. p. 06 (1858). 



('e)Urotiis tncncaticornis, Walk. loc. cit. p. 81. 



Dauntis tasnutnice, Goding (part.), Proc. Linu. Soc. N.S.W. xxviii. 



p. 31 (1!)03). 

 Daunus vitta, Goding, loc. cit. p. 32 (1903). 



Hab, Tasmania, Australia. 



Daunus contractus. 



Centrotus contractus^ Walk. List Horn. ii. p. 022 (1851). 

 Daunus tasmanice, Godiuir (part.), Proc. Linn. Soc. N.S.A^'. xxviii. 

 p. 31 (1903). 



Hab. Australia. 



X. — JJtscrijytlons of neiv Freshicater Shells from Jo nan. 



By H. B. Preston, F.Z.S. 



[Plate IX,] 



The shells described in tlie present ])aper v.^ere collected 

 recently by Dr. N. Annandale during his dredging-operations 

 in Lake Bivva. Tliougii the collection includes only some 

 seven species, a curiously varied MoUuscan fauna is revealed, 

 including as it does the Pala^arctic Pisidium casertanum, a 

 species which ranges over Northern Europe and Siberia, and 

 the genus Choanomphalus, which has hitherto been supposed 

 to be confined to North-eastern Siberia, together with a small 

 shell which the author has been unable to genericallj' separate 

 from Lithoiis, which has, up to the present time, only been 

 recorded from Central India. 



It is greatly to be hoped that further investigations may 

 be carried out in the lake, when, doubtless, further interesting 

 material will be brought to light. 



