PLATE XII.— (Continued.) 



Pig. 11. — Section through the bud forming region of a female colony, show- 

 ing the relation of the polyp-ide buds and the germ cells. The 

 latter (ger. els.) are differentiated at a point anterior to that 

 where the buds form. Four buds are shown, in the older of 

 which t i><l. h<l. 4) the cavity of the stomach has formed (st.). 

 The cells above the stomach are arranged in somewhat regular 

 rows, and represent incipient tentacles {in. ten.). These are 

 again shown in the third polypide bud (/«/. bd. S, in. ten.). 

 X 600 



Fig. 12. — Section from the ventral side of a female colony, showing the 



cells of the. zo ial wall, the outer layer of a polypide bud {pd. 



bd.) lying close to the septum [sep.) which separates two 

 zooecia. The germ cells (gey. els.) are prominent in the germ- 

 inal tissue [ger. tis.). X 600 



