272 VINE : POLYZOA OF THE LOWER AXD UPPER GREENSAND. 
28. Microporella antiqua, Vine. 
= Microporella sp. ( ? antiquata) Camb. Green. Pap., p. 15, 
pi. ii., f. 11. 
Besides the original fragments described above, I have found 
another small example attached, which I believe belongs to a similar, 
if not to the same species of Microporellidoe. It encrusts a portion 
of the base of a Gorgonia, but, excepting the shape of two or three of 
the cells, which are similar to the fragment already described, the 
colony is otherwise indistinguishable. 
Habitat : On Gorgonia base, and on Fragments of Echinoderm 
spine. 
Horizon : Phosphate Beds. 
(Part n., FoRAMiNiFERA, Camb. Gr. Paper, p. 16). 
A few errors crept into the second part of my Cambridge Green- 
sand Paper, which, through the kindness of Prof. T. Rupert Jones, I 
am now able to correct. The species described by me were : — 
21. Webbina tuberculata, Sollas. 
22. „ loevis, Sollas. 
23. Trochammini lielveto-Jurassica, Hausler. 
24. Textularia agglutinans, D'Orb. Of these No. 23 should have 
been Lituola irregulai^is, Roemer. 
Part III. 
Foraminifera and Ostracoda from the Greensand and Chalk-Marl 
of Cambridge. [Phosphate Beds.] 
The following lists of Foraminifera and Ostracoda fi'om the 
Cambridge Phosphate Beds (^'Coldhams' Lane Pits," T. Jesson, F.G.S.), 
I am enabled to publish through the kindness of Prof T. Rupert 
Jones, F.R.S., and C. D. Sherborn, F.G.S. Within the last few 
months (June to Nov., 1889) I have re-examined much of the finer 
debris from the above beds, and picked out a large number of indivi- 
duals of species belonging to the before-mentioned groups. Many 
of these were mounted separately, and then submitted to Prof. 
T. R. Jones, who, with the help of Mr. Sherborn, carefully tabulated 
for me the whole of the specific names now published. It is not 
