OF ANIMALCULES. JS 



109. Vibrio linter. The boat-shaped Vibrio. — This 

 aninialcule resembles more in form an egg with a short 

 neck, than a boat. The interior is usually filled with 

 pellucid molecules, indicating- a polygastric structure. 

 Found occasionally among duck- weed. 



110. Vibrio colj/mbus. The diver Vibrio. — This ani- 

 malcule, shewn, magnified, in figure 49, is the largest 

 of the genus : its motion is slow. Found in clear river- 

 water. 



111. Vibrio utriculus. The little bottle-shaped Vibrio. 

 — This species has some resemblance in form to the 

 Enchelis pupa, fig. 36. It has commonly a bright globule 

 towards the end, is very restless, and swims in an un- 

 dulating course. It is met with both in fresh and salt 

 water infusions. 



112. Vibrio sir ictus. ^Th'is Vibrio is capable of great 

 contraction, as exhibited by the magnified views, figures 

 50 and 51, where it is shewn both at its greatest con- 

 traction and elongation. It seldom inflects itself, and 

 the neck when extended is like a thread, and quite 

 diaphanous. Found in sea-water. 



113. Vibrio anas. The duck-liJce Vibrio. — This ani- 

 malcule resembles the Trichoda anas. It is capable of 

 great contraction : the neck is long and not so slender 

 as its posterior extremity ; the interior is replete with 

 digestive sacs. Found both in salt and fresh water in- 

 fusions. Length, l-2t0th of an inch. 



114. Vibrio /fif^cfo/a {Trachelius fasciola, E.) The 

 fillet Vibrio. — ^This animalcule appears from its organ i- 



