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CHAPTER XIV. 



THE TANGANYIKA JELLY FISH. 



The remarkable organism, Limnocnida tanganyiccs, or the 

 Tanganyika jelly fish which originally caused interest to 

 centre in the question of the nature of the aquatic faunas of 

 the great African lakes, was first observed, as I have said, 

 by Dr. Bohm and afterwards by Von Wissmann. Finally 

 by the efforts of Mr. Frederick Moir, who forwarded osmic 

 acid and spirit to Central Africa, Mr. Swann succeeded in 

 preserving some specimens on the Lake. The material 

 thus obtained was sent to Dr. Giinther at the British 

 Museum, who in turn handed it for examination to his son. 

 The result of this examination appeared later in two papers, 

 a short general account of the animal's anatomy published 

 in " The Annals and Magazine of Natural History," and 

 some further details which subsequently appeared in " The 

 Quarterly Journal of Microscopical Science." 



As these accounts have now been in the literature some 

 years, it has appeared to me to be unnecessary to go into 

 details with respect to the structure of the adult animal in 

 the present work. It will suffice to say that the jelly fish is 

 a true Craspidote Medusa, as Bohm originally described it ; 

 that when adult it varies between the sizes of a one and a 

 two-shilling-piece ; that it is during life nearly as flat as 

 these respective coins, and that it carries its long tentacles 



