258 VINE : NOTES ON POLYZOA FROM THE CORNBRASH OF THRAPSTON. 
Locality : Corn brash, Thrapston. 
This is by far the most abundant species of all the Cornbrash 
Polyzoa. 
Description of Plates A and B. 
Plate XII. 
Figs. l-la. Stomatopora Phillipsi, Vine. The largest colony found. 
,, 2-2a. „ „ ,, Another colony. 
3. „ Phillipsi ? slightly varying from the above. 
„ 4. „ intermixta, Vine, natural size. 
„ 4a & b. „ „ ,, enlarged. 
„ 5b- 5c. ,, dichotoma, Lamx,, various colonies. 
5 & 5a. ,, „ „ enlarged. 
,, 6-6«. Proboscina Thraptonensis, Vine type. 
66 to 6c?. „ various colonies. 
Plate XIII. 
7 - lb. Proboscina obscura, Vine. 
la. „ „ Ocecium (?) 
8- 8a. „ divisa, Vine. 
9- 96. Clementina, Var. minuta, Vine. 
10. „ ornata, Vine. Colonial growth of Zoarium 
marked a and 106, showing two sets of 
Ocecia. 
10a. ,, ornata. Ocecial chambers from the left-hand 
side of the fig. 10, marked a. 
106. ornato. Ocecial chambers from the right- 
hand side of the colony, marked 106. 
