Fig. 1. 
Anatomy of Cerithium Telescopium. 
437 
Explanation f the Figures. 
Puates XX & XXI. 
Cerithium Telescopium, Brug. 
Animal in its natural position as seen from above and 
beneath. 
2. Animal taken from the shell. 
av 
eS oe 
Operculum. 
Foot. 
Muzzle. 
Rectum. 
Matrix. 
Stomach, 
Liver. 
Organ (use unknown) belonging to the parts of gene- 
ration. 
Sac of viscosity and ovaries. 
Cavity of respiration laid open. 
RSF rR Sa We ae oa 
Operculum. 
Foot. 
Muzzle. 
Rectum. 
Matrix. 
Branchie. 
Liver. 
Vessel carrying blood from the branchiz to the heart. 
Pericardium. 
Ventricle. 
Auricle. 
Sac of viscosity. 
Cavity of the abdomen laid open. 
a. 
b. 
d, 
Portion of the coat of the abdomen turned back. 
Head, 
Rectum, 
