vine: fossil polyzoa : ADDITIONS TO THE CRETACEOUS LISTS. 151 
II. Stomatopora ramea, Blain. (Quart. Journ. Geol. Soc, 
p. 465, Yorksh. Geol. Soc, p. 371). 
In the two papers referred to above I remark that examples of 
this species are rare in the Red Chalk. From the top bed two 
colonial growths of very variable habit were found encrusting 
Terebratula biplimta. The Zooecia are elongate, about one-sixteenth 
of an inch in length, but tolerably even as to breadth. 
Ill Proboscina dilitata, d'Orb. 
Var. Cantabrigensis, Vine. 
1889. Further Notes on the Polyzoa of the Cambridge Greensand. 
Proc. Yorksli. Geol Soc, vol xi., p. 263. 
In my Red Chalk papers, (1890) I remark that I found on my 
material a cast only of this beautiful variety of P. dilitata. In the 
new material submitted to me by Mr. Jesson was a well-preserved 
example of this species encrusting Inoceramiis, but not quite so large 
as the figured example (Cam. Greensand Paper, pi. xii., figs. 3-4). 
Zoarium branching with two, three, and four rows of cells in the 
branch. Fig. 3. pi. a, represents a very young example of the 
species. 
Horizon : Red Chalk, Hunstanton. 
IV. Proboscina inornata, sp. n., pi VI., fig. 4. 
I have not previously noticed a Red Chalk Polyzoon similar to 
the one now depicted. The Zoarium was found coiling round the 
stem of a Belemnite. The Zooecia, which are alternately placed to 
the right and left, vary from one, to three in a row, and are large and 
bulky, passing from uni- to multiserial in their arrangements. On 
the same stem is a course variety of Stomatopora linearis, d'Orb 
(Yorksh. Geol. Soc, 1890, pi. 17, fig. 5) only that the Zooecia are 
rather more stunted than those previously figured. 
Horizon : Top Bed Hunstanton Red Chalk. 
Besides the above there were in the new material from the Red 
Chalk much better examples of the following species all from the top 
bed :— 
Zonopora variabilis, d'Orb. (Quart. Journ. Geol. Soc, p. 482; 
Yorksh. Geol. Soc, p 384). 
