Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
CasTLe. — Rhynchobdellidie. 
13. 
PLATE 4. 
G. fusca. 
Dorsal view of a small individual. For clearness furrows between 
annuli are represented only at the margin of the body, except where 
they mark somite boundaries. Testes are shown only in the right half 
of the figure, salivary glands only in the left half. From an entire 
preparation. XX about 34. 
Parasagittal section of head end.  X 52. 
Head end of young individual viewed from left side. From an entire 
preparation. XX 83. 
Head end of individual shown in Figure 18. Dorsal view. X 83. 
Group of reserve-food cells from one of the segmental clear spots marking 
the sensory annuli. From a living animal. 865. 
Ventral view of brain. From an entire preparation. X 208. 
