~ 
VARIETIES OF NASSA. vt 
Plicatella, A. Ad. P.Z.S., 1851, p. 111. — Reeve, pl. 9, f. 56. 
3 A shell embracing the characters of the N. prismatica, Broce., 
N. nivea, A. Ad., and plicatella. 
Perpinguis, Hinds, granules fine and close, as in the figure 
** Voy. of the Sulph.,” pl. 9, f. 12-13. California. 
Broad, whorls round, shell much shorter than the last ; very 
like the figure in Chemnitz, pl. 124, f. 1164. - 
Coarsely granular, resembling a large N. trivittata, Say. 
Pyramidalis, A. Ad. P.Z.S., 1851, p. 113. Reeve, pl. 29, 
f. 191. The shell from which Reeve’s figure is taken is 
a much worn and bad specimen. It is very like a small 
specimen of Buccinum undatum, Linn., var. glaciale ; beau- 
tifully variegated. Port Elizabeth, Africa. 
White, with a few broad distant ribs ; the upper whorls are 
cancellated, the body-whorl is slightly striated transversely. 
Labelled, Mediterranean. 
Picturata, Marr. (See description.) Taylor Collection. 
Proxima, C. B, Ad. Panama Shells. Ann. and Lye. New York. 
Panama. 
Versicolor, C. B. Ad. y p. 66, Panama. 
A little more elongated ; is the N. rufocincta, A. Ad. P.Z.S., 
1851, p. 106. Reeve, pl. 17, f. 112. Dyson, Honduras. 
Lucida, Marr. Ann, and Mag. Nat. Hist., 1874; yellow-brown, 
with white ribs. 
A semicostate variety. 
With few and distant ribs. 
Argentea, Marr. Pamphlet, p. 9. Whydah, West Africa. 
Between N. versicolor, C. B. Ad., and N. Sancti-Helene, 
A, Ad. St. Helena. 
Sanctx-Helene, A. Ad. P.Z.S. Reeve, pl. 28, f. 188. 
Intermediate between the last and the following shells— 
D Striata, Reeve (not C. B. Adams!), pl. 27, f. 177; 
Between N. versicolor, C. B. Ad. and N. sinusigera, A. Ad. ; 
Pa N. sinusigera, A. Ad., and fraudulenta, Marr, 
Kegulare, Kuster. Mart. and Chem., ed. 2nd, pl. 12, f. 23,4. 
Cape of Good Hope. 
Sculpta, Marr. (See description.) 8. Archer, Natal. 
Undata, Marr. Pamphlet, p. 9. Resembles a miniature 
form of Buccinum undatum, Linn. 
