170 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
LIVERPOOL BIOLOGICAL SOCIETY. 
PLATE X; 
. Longitudinal section through ventral portion of 
head, passing through the right lateral lip. 
Showing Semper’s organ (x 250). 
. Transverse section through the head, anterior to 
the buccal cavity proper (x 40). 
. Transverse section through the kidney (x 100). 
(The right side of this figure is the dorsal 
surface.) 
PuATE XI. 
. Longitudinal section through the head, nearly in 
median line (x 40). 
. Transverse section through the head in the region 
of the cartilage (x 40). 
Puate XII. 
. Transverse section through the nerve collar (x 55). 
. Dissection of Limaz maximus, to show Semper’s 
organ. 
. Transverse section through the pedal gland. 
Showing only ordinary ciliated cells on the 
floor of the gland (x 250). 
. Transverse section through the pedal gland. 
Showing sensory cells (x 250). 
