AND FAUNA OF SOOCHOW AND VICINITY 1 77 



Spongilla (Eunapius) conifera Annandale. 

 Spongilla (Stratospongilla) sinensis Annandale. 



Foo Mung, Soochow. 

 Spongilla (Stratospongilla) stanleyi Annandale. Tai Hu, 

 Ephydatia meyeni (Carter). Foo Mung, Soochow. 

 Ephydatia bogorensis Weber. Soochow. 

 Trochospongilla latouchiana Annandale. Loen Mung, 



Soochow. 

 Trochospongilla sol Annandale. Si Dong Ding, Tai Hu. 



Other Animals. 



There seems to be only one Hydra in and around Soo- 

 chow. It is rather a pearly colour and is easily obtained in 

 suitable locations. These provide us with all of the materials 

 that we need for class work and can be had in large numbers 

 in the fall from many of the ponds. 



The worms and the larvae of the aquatic diptera occur 

 abundantly in the scums from the ponds and canals, or may 

 often be found in masses of algae or water weeds. The 

 larvae of the Chironomous, a little fly resembling a mosquito, 

 are possibly those which occur in largest numbers. Chae- 

 tonotus, a "lithe and graceful little creature," is occasionally 

 found and we believe that there are several species of this 

 little fellow. 



Two planarians are more or less common. A small one 

 under stones and bricks in the canals and a large brown 

 bodied one, which we often see in our gardens, that has a 

 fan shaped head. The former is Planaria sp. and the latter 

 Bipalium sp. The latter becomes several inches long and 

 has distinct lines down the middle of its dorsal surface. 



Anguillula occurs in Chinese vinegar and others of 

 related genera occur in the water plants. 



A very small worm with reddish freckles over its body 

 is frequently found, it is Aelosoma sp. Stylaria sp. is a 

 regular form in our aquaria. 



Rotifers. 



The rotifers have furnished us a great deal of interesting 

 material. The occurence of these forms seems to be subject 

 to peculiarities that we are not yet familiar with and often 

 we will find one thing in abundance at one visit to the pond 

 and the next time it will have almost disappeared. We have 

 with the help of Mr. Hairing got the following list of Chinese 

 forms : — 



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