Vol. I, No. 4.) Notes on an Indian Worm. 119 
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of the snail’s shell. As soon as it comes in contact with the body 
of a small crustacean, the anterior sucker takes afirm hold. Its 
ventral surface is covered with small prominences, which are 
not grandular but projections of the epidermis. These 
project free from the ventral surface as in the posterior bundles, 
but are contained in a pocket or introvert in such a way that 
they lie below the mouth inside a lower lip or lobe which forms 
the wall of the posterior part of the prostomial sucker, As long 
alm 
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digestive function (‘liver cells”) and the interior of the crusta- 
cea swallowed become disintegrated very largely in this chamber. 
i eco 
Sent in the species, but it appears to be twenty or twenty-one. 
More than this number are, however, produced b img tr 
the penultimate segment, and at first it is impossible to distinguish 
