LIMNOCNIDA TAN - GANICH. 
83 
On Some Points in the Anatomy and Bud- 
Formation of Limnocnida tanganicae. 
By 
Charles L. Roulenger, M.A., 
Lecturer on Zoology in the University of Birmingham. 
With Plate 15 and 3 Text-figures. 
Contents. 
page 
1. Introductory . . . . . .83 
2. The Structure and Function of the “ Nettle-ring ” . 85 
3. The Nervous System . . . . .89 
4. The Histology of the Manubrium . . .90 
5. The Method of Nutrition . . .92 
6. The Development of the Medusa-buds . . .94 
7. The Phylogeny of the Medusoid Individual in the Hydro- 
medusse . . . . . .100 
8. Summary ...... 103 
9. Bibliography ...... 103 
10. Explanation of Plate . .105 
1. Introductory. 
The minute anatomy of the African freshwater jelly-fish, 
Limnocnida tanganicse Bohm, was first described in this 
journal by R. T. Gunther in 1893 (1) ; in addition to the 
account of the histology of this animal the paper includes a 
very complete description of the asexual development of the 
buds from the wall of the manubrium. 
Since Gunther’s memoir numerous specimens of this interest- 
ing medusa have been brought back to this country by 
various collectors. 
