68 0. F. V. Mollendorff — Japanese Land and Freshwater Shells. 



at the same time they show close relationship to the small species of 

 sculptured CycJoj^hori described from China, viz., G. trichophorus, mihi, 

 sexfilaris, Heude, etc. These do not, however, as I have lately found out 

 and shall elsewhere prove, belong to Cyclophorus, but to Lagochilus ; and, 

 from the analogy of the shells, I do not doubt that the Japanese species 

 will have to be placed in the same genus. In that case fanatic adherents 

 of strict priority might contend that this genus should be named 

 Japonia (published 1859) instead of Lagochilus (1864), but, as the few 

 words by which Japonia was introduced cannot be called a scientific 

 description, whereas Lagochilus was properly described and published 

 by Blanford, I hope nobody will contest the validity of the latter name. 

 Should it be found that the Chinese and Japanese species deserve to be 

 separated from the Indian forms as a section of their own, Japonia 

 should be retained as its name. 



40. Helicina japonica, A. Adams. Sengoku (Anderson), Mia- 

 noshda Hills, Chusinji {Hunger ford). 



41. Melania libertina, Gould. In various forms from the Hakoni 

 Lake, Kiga, Central Japan, and Yeso. I quite agree with E. von Martens 

 and Kobelt, who combine M. japonica, Reeve, M. tenuisulcata, Dunker, 

 M. ambidextra, v. Mart., and M. reiniana, Brot, all with M. libertina, 

 Gould ; as frequent transitions from one form to another are to be found. 



42. Melania nipponica, Edg. Smith. Lake Biwa. 



43. Melania biwm, Kobelt. Lake Biwa. Messrs. Hungerford, 

 Schmacker, and Anderson have collected this fine species in some num- 

 bers, and I have seen no transitional forms which would necessitate its 

 combination with the preceding species. 



The Paludinae collected by Dr. Anderson are all young or imper- 

 fect specimens. 



