52 
PROCEEDINGS OP THE SCIENTIFIC ASSOCIATION. 
Closely allied to R. nitida , Adams, Phillipines. 
Habitat: 'W’estihdies. 
5. Rissoina lalrosa Schwartz. 
S. v. M. op. cit. p. 94, f. 58. 
Described from a single specimen. 
Division Y. — The upper whorls only longitudinally lined , 
the lower whorls with fine spiral lines. 
1. Rissoina albida Adams. 
R. albida, Adams , Proc. Rost. Soc. iY. JR. 1845, f. 6. 
— affinis, Adams , l. c. 
— albida, 8. v. M., op. cit. p. 103, f. 68. 
Habitat : Jamaica, St. Thomas. 
2. Rissoina semiglabrata Adams 
A . Adams Proc. Zool. Soc. Lond. p. 279 
S. v. M. op. cit. p. 103, f. 69. 
Habitat: Cuba. One specimen only known from beneath 
a stone at low- water-mark. 
Division YI. — Smooth. 
a. The embryo-whorls folded . 
A1 1 the species of this section are from the Eastindies and 
Pacific Ocean. 
b. Entirely smooth. 
1. Rissoina browniana Orb. 
R. browniana, Orbigny , Moll. Cuba , pt. ii, p. 28, 
pi. xii, f. 33, 35. 
— laevissima, Adams , Contr. Conch , p. 115. 
browniana, S. v. M. } op. cit. p. 110, f. 78, 
Habitat : Westindies. 
2. Rissoina laevigata Adams 
C. B. Adams , Contr. Conch, p, 114 
S. v. M. op. cit. p. iii, f. 79. 
