RTSSOIDJB. 121 



9. Onoba n. sp. 

 Long. 1 mil. [vix] ; anfr. 3J. 



2 Andamans ; coll. G. Nevill, Esq. 



var. [? dist. sp.]. 

 2 Andamans ; coll. G, Nevill, Esq. 



10. Onoba sp. 



1 Hongkong; coll. R. Hungerford, Esq. 



There is another sp. of Onoba, said to be from Hongkong and 

 Senegal [!] figured by Folin, Fonds de la Mer, PI. VIII, fig. 5, 

 as Pelycidium venustulum. 



Sub-Genns CERATIA, H. & A. Adams. 

 Gen. Moll. 1, 1854, type Hissoa proxima, Alder. 



There is a 0. pyrgula, A. Adams, from Suez, Ann. Mag. 1870, 

 also a species from New Guinea described by Tapparone-Cane- 

 fri. 



11. Onoba (Ceratia) proxima. 



Rissoa proxima, Alder, Forbes and Hanley, Brit. Con. Ill, 1853 ; = R. 

 striatula, Jeffr., Ann. Mag., 1858, not Turbo ( = Itissoa) striatulus, Lin. 



1 England ; ex c. G. Nevill, Esq. 



1 Algiers; coll. P. Joly, Esq. ("very rare"). 



Sub-Genus HYALA, H. & A. Adams. 

 Gen. Moll. I, 1854, type Turbo vitreus, Mtg. 



Three species are described by A. Adams, Ann. Mag., 1870, 

 from Suez, as belonging to this Genus. Rissopsis, Garrett, 

 appears to be closely allied. 



12. Onoba (Hyala) vitrea. 



Turbo vitreus, Montagu, Test. Srit., 1803. 



2 England ; ex c. G. Nevill, Esq. 

 6 Algiers ; coll. P. Joly, Esq. 



