LITTORINID.E. 



163 



6 Algiers ; coll. P. Joly, Esq. 



1 Japan ; ex Mr. Damon [" coll. A. Adams "]. 



8 Ceylon ; coll. G. Nevill, Esq. 



4 Andamans [juv.] ; coll. G. Nevill, Esq., and Captain R. C. Temple. 



This is, I believe, one of the very few mollusks common to 

 the European and Indian Seas ; I cannot separate the two 

 forms even as varieties ! A. Adams records F. costatus, 

 Brocchi, from the Mediterranean and China Seas ; but F. 

 ambiguus from Senegal only. 



2. Possar tornatilis. 



Fossarus tornatilis, Gould, P. Bost. S. 1859, Hongkong, at lOfths. axis 5, 

 diam. 4 mil. ;=F. stolizfcanus, Nevill, J. As. Soc. Bengal, 1871, 

 Ceylon, and Bombay, long. 4%, diam. 3f mil. ;=F. japonicus, A. 

 Adams, Ann. Mag. 1861. 



1 Japan ; ex Mr. Damon [" coll. A. Adams" as " F. japonicus"]. 



5 Bombay | typical F. stoliczJcanns~\ ; coll. Rev. S. B. Fairbauk. 

 1 Gwadar [with operculum) ; coll. W. T. Blanford, Esq. 



14 Hongkong ; coll. R. Hungerford, Esq. 



Fide A. Adams, P. Z. S. 1863, should be Nerita costata, Broc., 

 a European species. Fischer, J. de C., 1864, separates the 

 two forms. My brother also possesses the species from Ceylon. 



3. Possar trochlearis. 



Fossar trochlearis, A. Adams, P. Zool. S. 1853, p. 187, Philippines ; from 

 Japan and Pegu, op. cit., 1863 ; fide McArthur, Suez. 



1 Japan ; ex Mr. Damon [" coll. A. Aiams"]. 



40 Andamans, Arakan, Muscat, Bombay and Ceylon j coll. F. 

 Stoliczka, W. T. Blanford, J. Wood-Masou, and G. Nevill, Esqrs. 



Lives on large oyster shells ! 

 1 Hongkong ; coll. R. Hungerford, Esq. 



4. [?] Possar, n. sp. 



1 Arakan ; coll. Dr. F. Stoliczka. 



Very likely a species of Vanikoro ; unfortunately it is in 

 very bad condition. It bears some resemblance to F. reticu- 

 latus, but is covered with very peculiar tubercles, &c., &c. 



