290 
291 
VARIETIES OF NASSA. 
With the upper parts of the whorls strongly ribbed and the 
lower half striated. 
Showing an affinity with the small forms of N. antillarum, 
Phil., and N. vibex, Say. 
Short, broad, of a dark red-brown colour, with darker 
transverse thread-like lines. 
Body-whorl smooth, ribs continuous ; N. fuscolineata, Smith. 
Ann. and Mag. Nat. Hist., 1875, p. 323-4, Cape Sima. 
Pusiola, D’k’r. Vitti Islands. 
Propinqua, J. Sow. (Crag.), granular variety. 
= semistriata, Brocchi; semistriated variety. 
Elongated, pale, with pale rufous bands, N. trifasciata, A. Ad. 
Closely striated all over the shell. Vigo Bay. 
Granular ; this is the recent form of the N. propinqua, J. Sow., 
from the Crag. 
Longitudinally ribbed and transversely grooved. 
Narrower and more elongated. 
291aMore fusiform than the figure in Brocchi’s work. This is the 
common form. Vigo Bay. 
291BBroadly ovate, semistriated. 
292 
293 
Short and broad, equally grooved throughout, grooves distant. 
Not more than a quarter of an inch long, ribbed and can- 
cellated, similar to some of the varieties of N. marginulata, 
Lam. 
Intermediate between the genus Nassa and Bullia. 
Vincta, Marr, Pamphlet, p. 12, is a large elongated form, 
three banded, showing the passage of these shells into the 
pale varieties of N. sequijorensis, A. Ad. 
Narrow and elongated, closely allied to the N. planicostata, 
A. Ad. 
Narrow and elongated, closely allied to the N. corniculum, 
Olivi. 
Allied to some of the brown varieties of N. pauperata, Lam, 
A small beautifully variegated variety. Keeling’s Islands. 
Resembling the West African shell, the N. sesarma, Marr. 
Small, elongated. 
Small, very thick, noduled ; is the N. pumilio, Smith. 
Whydah, W. Africa. 
Narrow and elongated. Malta. 
