266 MOLLUSCA. 
Fig. 187.—SECOND DISSECTION OF SNAIL (Helix pomatia). (Ad nat. ) 
= g Spermatheca. 
8 E 
oy € » 
a 3 = : 0 
a 1S) 37 Us 
: eS 2g 
eww Ba Ee 
ee oe oO. 
a2 ao 0 Bo 
Fy a aS vy 
3 , 0A EA § és 
r= re ES ¢ 8S 
& 4 o — EO 
ay 7 
oO a a 28 
a a) 
4 a4 at 
g " po 
a 5 Fo 
a a 2 
co) 
> 
° 
Flagellum. 
Vas 
Columellar 
Muscles. 
Salivary 
Gland. 
Intestine. 
Stomach, 
Rectum. Tebes of 
Digestive Gland. 
The body wall is cut open along the mid-dorsal line and up the spiral. The spiral 
lobe of the digestive gland is cut through and thrown over to the right along with all 
the reproductive organs. The alimentary organs are released and thrown over to the 
left, the nervous system and columellar muscles remaining in their normal position. 
