484 
APPENDIX. 
[B. 
52. Cerithium lima? Lam. Hist. vii. 77. Brug. No. 33. 
A broken shell apparently of this species was brought home, but 
when a more perfect specimen is found, it may prove to be distinct 
from it. 
53. Cerithium perversum ? Lam. Hist. vii. 77. 
54. Nassa fasciata, n. 
Buccinum fasciatum, Lam. Hist. vii. 271. 
55. Nassa suturalis, n. 
Buccinum suturale, Lam. Hist. vii. 269 ? 
56. Nassa mutabilis, n. 
Buccinum mutabile, Gmel. Syst, Nat. 3481. Lam, Hist. vii. 
269. 
Icon. List. t. 975. f. 30. Born. t. 9. f. 13. Chemn. Conch, 
xi.t. 188. f. 1810, 1811. 
57. Nassa livida, (n. s.) 
Testa ovato-conica superne transverse plicata bast spira-^ 
liter striata purpureo-livida obscure castaneo bifasciata^ 
anfractibus conve^eiusculis, suturci linea alba notata, labro 
extus marginato intus sulcato. 
Icon. ■ 
Shell ovate conical, livid purplish-white, with one or two central, 
obscure brown, bands ; upper whorls bluntly transversely plaited, 
the rest smooth, livid, except at the front part of the last, just 
over the groove, where it is spirally striated ; the suture distinct (not 
channelled) marked by a white line ; the inner lip distinct, raised, 
the outer thickened on the outer side, edge sharp, inside grooved ; 
the throat fulvous-brown ; axis one inch, diameter half an inch. 
This shell belongs to the group of Nassa, but will perhaps form 
a distinct genus intermediate between it and Columbella, charac- 
terized by the narrow form of the mouth. It is most nearly allied 
to N, olivacea, n., (Bucc. olivaceum, Lam.) and N. canalicu- 
lata, n., (Bucc. canalicidatum, Lam.) 
