OF ANIMALCULES. 



61 



86. GoMPHONEMA rotuiidatum, — New species; l-240th 

 to l-288th. 



87. ? clavatum. — New species ; l-768th. 



g^ ' ? constrktum. — New species ; l-900th. 



{g.) Animalcules fixed by a pedicle or stalk ; some- 

 times in pairs ; both ends contracted. 



89. CoccoNEMA cistula, — (New genus) ; l-600th to 

 1.1500th. 



{h.) Animalcules fixed by a stalky radiated (like a fan). 



ECHINELLA. 



{B.) Animalcules inclosed in univalve shells, round, di- 

 vided transversely into tiro or four parts. 



90. Closterium cornu. — New species ; l-2400th of 

 an inch. 



91. /M«M/fl.— l-96th to 1 -120th. 



92. — ' trahecula. — New species ; l-96th. 



93. YiBRio bipunctatus. The two-dotted Vibrio.— This 

 is a very inactive animalcule, of a brown colour and 

 cylindrical form, truncated at each end, with two dots 

 near the middle. In some specimens only one dot is ob- 

 s erved Their real length is about l-200th of an inch. 

 It is probably the Fragilaria of Dr. E. 



94. Vibrio tripuuctatus. The three- dotted Vibrio. (Na- 

 vicuLA, E.) — This animalcule is distinguished from the 

 last species by its conical ends, and by three globular 

 points, or a few transverse markings (see group 42). 



