oF 
ple 
PLATE VI. 
Fre. 1 — The animal is dissected to show the intestinal ‘canal. 
a. Anterior adductor muscle. Vv. 
m. Mouth. p. 
f. Foot. au. 
g. Gill. real 
t. Tentacles of inhalent siphon. i. ¢, i. ¢, 
ec. Branchial chamber. 
c. Cloacal chamber. x 
a. Anus. if 
a. Posterior adductor muscle. Ih 
r. Posterior retractor muscle. 
Ventricle. 
Pericardium. 
Auricle. 
Intestinal canal. 
Points of attachment of in- 
testine. 
Rectum. 
Liver. 
Stomach. 
