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DR. A. GUNTHER’S DESCRIPTION OE CERATODUS. 
509 
i. Dermo-neurals. 
k. Haemal canal. 
l. Haemal spine. 
m. Interhaemal first. 
n. Interhaemal second. 
o. Dermo-haemals. 
r. Rib. 
PLATE XXXIX. 
Upper part of intestinal tract (f nat. size). 
. 1. Ventral aspect. 
. 2. The anterior part of the intestine is opened, the liver (c) and gall-bladder (e) 
being drawn forward. A slit is made at m, through which part of the next 
compartment (o) may be seen. 
a. Intestine. 
b. Ligament fixing the intestinal sac to the wall of the abdomen. 
c. Liver ; c', lateral lobe of liver. 
d. Diaphragm. 
e. Gall-bladder ; e\ mouth of ductus choledochus. 
f Stomach. 
g. Right testicle drawn away from the side of the intestine. 
i. Adipose layer descending from the right side of the oesophagus. 
1. First compartment of intestinal spire. 
m. Spleen. A slit shows the thickness of this body by n, o being part 
of the next following compartment. 
oe. Part of oesophagus, opened. 
p. Double pyloric fold. 
q, cp Glandular patches in the wall of the foremost compartment of the 
spire, as seen from without ; and f, (f as seen from within 
PLATE XL. 
Fig. 1. Lower half of the abdominal organs (f nat. size). The intestine and left testicle 
are a little pushed towards the right, to render the layer of cellular tissue 
(A, li) conspicuous ; this tissue has been removed at l , to show the position of 
the lung. 
a. Intestine. 
b. Ligament fixing the intestine to the wall of the abdomen. 
V . Slit in the ligament. 
g . Left testicle ; g', vas deferens. 
