LITTORINIDE. 171 
Labelled “C. spiralis, A. Adams”; it cannot possibly be C. 
spirata, but agrees fairly with the description of C, globosa. 
Long. 1, diam. 1 mil. 
2. [?] Cithna, sp. 
1 Japan ; ex Mr. Damon (coll. A, Adams). 
Labelled “ Cithna omphalotropis, A. Ad.” A very doubtful 
little form. Perhaps a Rissoid, or Jeffreysia ? 
8. [?] Cithna, sp. 
1 Japan ; ex Mr. Damon (coll. A. Adams). 
Labelled “ Cithna sinensis, A. Ad.” The same applies to 
this; it might also be a Styliferina ? 
4, [?] Cithna, sp. 
1 Japan ; ex Mr. Damon (coll. A. Adams). 
Labelled “ Cithna consobrina, A. Ad.” Probably a Rissoid ? 
Genus ISAPIS, H. and A. Adams. 
Gen. Moll. I, 1864, type Narica anomala, C. B, Adams (Jamaica). 
A. Adams has also described Isapis lirata [1860] and Isapis 
conoidea [1863] from Japan, and considers Narica ovoidea, 
Gould, and Isapis maculosa of Carpenter, both from Mazaltan, 
as also belonging to this section. 
Genus FOSSARINA, Adams and Angas. 
P. Zool. S. 1863, type F. patula, Adams and Angas. 
1. Fossarina variegata. 
Fossarina Variegata, A. Adams (ubi?). 
1 Japan (?) ; ex Mr. Damon (ex c. A. Adams). 
2. Fossarina patula. 
Fossarina patula, 4. Adams and Angas, P. Zool. S&S. 1863, Port Jackson, 
“under stones.” 
1 Australia (?) ; ex Mr. Damon (ex c. A. Adams). 
