256 VINE : POLYZOA OF THE LOWER AND UPPER GREENSAND. 
therefore, the best known to me. If I am in error I shall be glad to 
learn so from local or other students. 
The explanation of the tabular list may be briefly alluded to. 
I have divided the space on the right-hand side into six columns. 
In the first division I have indicated all the Polyzoa heretofore 
catalogued by Prof. Morris and Mr. Newton, as belonging to the 
Lower Greensand, or Neocomien ; in the second, Upper Greensand, 
other than that of Cambridge ; in the third and fourth spaces, Chalk 
Marl and Lower Chalk ; whilst the fifth space, separated by double 
lines from the rest, is reserved for Polyzoa found encrusting fossils 
from the Cambridge Greensand ; and the sixth the species found in 
the phosphate bed, either loose, or adherent to derived fossils. As 
to the classification of the fossils the general plan adopted is founded 
to a large extent upon the recent researches of Busk, Hincks, Waters, 
and Dr. Pergens, but with a few necessary additions.'" 
The meaning of the symbols used in the columns : — 
(x) Recorded in Morris' Cat. Brit. Foss., 1854. 
(S) Species in School of Mines, and Catalogue (1878). 
( X X ) Species described in this, and in my former paper. Examples 
in Mr. T. Jesson's Cabinet, and partly in my own. 
a 
8 
o 
1 
!§• 
2 
cS 
O 
3 
Q 
o 
O 
a 
03 
o 
5 
1 
A 
w. 
O 
-q 
P. 
6 
Cycloetomata, Busk. 
§ 1. Parallelata, Waters. 
IStomatopora, Bronn. = Alecto. 
linearis, D'Orb. 
1 
var. Mortoni, Vine... 
X X 
2 
graciliformis (D'Orb. 's sp.) 
X X 
3 
reticulata, D'Orb. 
S. X 
S.? 
9 
Proboscina, D'Orb. Stomatopora, Hincks. 
dilatata, D'Orb. 
4 
var. Cantabrigiensis, Vine ... 
X X 
5 
ramosa, D'Orb. 
S. 
X X 
6 
cornucopia, D'Orb. ... 
S. 
7 
marginata, D'Orb. (Sharp) 
X 
* See CJassifications, &c.. Vine, Proc. Yorksh. Geol. Soc, vi. vol. ix. 
