VARIETIES OBTAINED AT ONE LOCALITY. 91] 
thing peculiar. ‘The second are narrow varieties of the N. reticulata, 
Linn. ; one of these is strongly warted ; the warts are translucent, 
like wax. ‘The third is a beautifully-mottled and banded specimen 
of the N. corniculum, Olivi, with a bright purple aperture; there is 
also a bright-banded variety of the N. fasciolata, Lam., with a 
yellowish-brown mouth. Another variety has strong longitudinal 
ribs, with groove-like striz at the base. The fourth is a broad 
form of the N. incrassata, Miill., with oblique ribs, a rough, 
strong shell, with small portions for the epidermis still attached 
to it. A tall narrow variety, with somewhat carinated whorls, 
deeply excavated at the sutures; another shell has round whorls, 
and a third has strong varices. Two other remarkable varieties 
of the shell known as N. varicosa, Turt., one with strong granules 
and somewhat angular whorls, without varices; the other speci- 
men has the upper whorls and about one-third of the body-whorl 
granular, and the remaining part simply grooved; this is also 
without varices. Another granular variety is banded with brown, 
has a brown columella, and the mbs are distant from each 
other. The following varieties of the N. glaberrima are extremely 
interesting, showing such a large amount of variation in a shell 
that is only itself a variety. The first of these is a shell with 
round whorls, having a single red band in the centre of the 
body-whorl, similar to the N. unifasciata, Kien; the upper 
whorls are all costate, while the body-whorl is only slightly 
grooved transversely. The second is a strongly costate, small shell, 
showing an aftinity with the N. delicata, A. Ad. Another variety 
of this costate shell has transverse equi-distant lines covering the 
whole surface of the shell. A third specimen has the ribs few and 
wide apart. A fourth variety is white, with strong longitudinal 
ribs, showing a close aflinity with the N. sinusigera, A. Ad., and 
seems to assimilate with some of my varieties of N. costata, A. Ad. 
A fifth form is bright and shining, beautifully marked, with short 
interrupted brown lines, similar to those occurring on the young 
specimens of N. gibbosula, Linn. One specimen, similar to the 
variety figured in Reeve, pl. 19, f. 129, has been bored through the 
last whorl. I wonder if these fellows are cannibals. A sixth is a 
