FHEASANT SHELLS. 513, 
the tentacles, and the foot is remarkable for a longitudinal groove along the 
sole,:so that in the act of walking each side advances initsturn. The tungue 
is rather long, and is armed with a formidable series of shai p teeth that serve 
admirably for the purpose of scraping away the vegetable matter on which the 
animal feeds. The operculum is horny, and rather spiral. The common 
PERIWINKLE (Litor-na Litorea) is the most familiar example of this family, and 
is too well known to need any detailed description. 
The Periwinkle is found upon our rocks in great pro- 
fusion, occupying the zone between high and low water 
and always being found near the edge of the tide. 
In former days, the PHEASANT-SHELLS were 
articles of great price and rarity, somt specimens 
almost rivalling the precious wentletrap in the enor- 
mous sums asked and obtained for tiem. Now, 
however, that their habitations have been dis- 
covered and more frequent voyages are made, 
they have become comparatively plentiful, although, 
from the fragility of their structure, a perfect speci- ass 
men is not at all common, and will still bring PERIWINKLE. —(Liforina 
a good price in the conchological market. seta) 
The Pheasant shells are now found in great numbers on the sandy beaches 
of several shores, being especiaily pientifm on the coast of Port. Western 
in Bass’s Straits. The high tide sweeps them towards the shore, where 
they. are left by the receding waters, and seek for shelter beneath the masses 
of sea-weed that are always flung on the beach by thetide. On lifting these 
sheltering weeds, the Pheasant-shells may be found crowded together under 
COMMON ToP.—(Zrochus zi2vphinus.) 
AUSTRALIAN PHEASANT SHELL.—(Phasianell: Australis.) 
their wet fronds. They can move with some speed, the duplicate nature 
of the foot aiding them greatly in progression. 
The little pointed shell on the left side of the illustration is the well-known 
Top of our own shores. 
This little shell, which is here represented of the natural size, is one of the 
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