JOURNAL 



OF THE 



ASIATIC SOCIETY OF BENGAL, 



Part II.— PHYSICAL SCIENCE. 

 No. I.— 1882 



I, — On, a collecUon of Japanese Clausilise made hy Brigade Surgeon H. 

 Hungerford in 1881. — By 0. F. yon Mollendoref, Ph. D., Vice- 

 consul for Germany, Hongkong. 



(Received January, 3rcL; — Read February, 1882.) 

 (With Plate I). 

 When E. von Martens (Preuss Exped. n. Ostasien, Landschnecken) 

 published the first connected list o£ Japanese landshells in 1868, there were 

 only 8 species of Clausilia known from that country, but their number 

 Las so rapidly increased of late years that Kobelt in his Fauna of Japan was 

 able to enumerate not less than 35 species, including one Balea. These show a 

 great variety of forms, and have necessitated the creation of many new 

 sections and groups of the subgenus Phaedusa^ many of Vtchieh are confined 

 to Japan. As only a small portion of the Japanese archipelago has been ex- 

 plored as yet, and that for the greater part by travellers for whom conchology 

 had only a secondary interest, it is not not to be wondered at that Brigade 

 Surgeon Hungerford's excursions have been most successful. His collec- 

 tion, made in a few weeks, contained, as the following list will show, 21 

 species of Clausilia, ten of which I consider to be undescribed. In enu- 

 merating them, I follow the judicious arrangement of Phaedusa by Dr. 

 Boettger in his " Clausilien studien" (Cassel, 1877) and " Systematisches 

 Verzeichniss der Gattung Clausilia" (Frankfurt, 1878), which I find corro- 

 borated nearly throughout. In a few instances^ however, the creation of 

 new groups for some of the novelties will eventually prove to be necessary. 

 I may add here that I have used throughout the terminology now 

 generally adopted in Germany. We use the term " lamellae^^ only for the 

 " 1 



