i) | 
VARIETIES OF NASSA. 33 
Narrow and elongated, rough, passing into the N. scabrius- 
cula, Powis. 
Whorls angular, dark brown, with a pale central band, rough. 
Columella bright yellow, operculum crenated on the side 
next to the inner lip. 
Broad, passing into the N. collaria, Gould. 
Collaria, Gould. Reeve, pl. 25, f. 169. Panama. 
With the upper whorls closely striated ; is the N. crebristriata, 
Carpenter. Mazatlan Shells, p. 499. Panama. 
Elongated, with strong white varices. 
Ribs oblique, covered with a pale epidermis. 
Broader and more cylindrical, is a shell figured in Mart. and 
Chem., ed. 2, pl. 6, f. 12, 13. 
Finely granuled, passing into the N. multigranosa, D’k’r. 
Whorls tumid, shell rather thin, N. multigranosa, D’k’r. Phil. 
Abbild. pl. 2, f. 13. 
Thicker, whorls more regular than the last, granules larger ; is © 
the N. hotessieri, D’Orb. Cuba. 
Lip and columella expanded, tapering to an acute point, 
resembling the N. nodulifera, Phil. 
Encaustica, Brusina. 
Gimmellari, Biondi. Jour. de Conch.,vol. 7, p. 303. Is strongly 
ribbed and transversely striated. 
Tall, thin, passing into and completely blending with the 
varieties of N. capensis, D’k’r. 
Dark brown, white at the base. 
Tall and narrow, of a beautiful rose colour. 
Passing into the N. labiata, A. Ad. 
Callandiana, Crosse. Jour de Conch., 1863, p. 81, pl. 2, f. 6. 
Slightly plicate, shell very oblique; is the N. (Strombus) 
glabrata, Sow. Thesau. Conch., pl. 8, f. 66, 67. 
=N. obliqua, Kien. West Africa. 
Strongly plicate. 
Banded with blueish grey, unspotted, columella and inner lip 
strongly plicate, showing a close affinity with the N, tenia, 
Gmel. ; is the N. cerulea, Marr. 
Intermediate between the N. incrassata, Miill., and the N. 
teretiuscula, A. Ad. 
A variety passing into the N. plebecula, Gould, and closely allied 
to some of the tall forms of N,ambigua, Mtg. Spain, Portugal. 
