VINE : CLASSIFICATION OF THE PALEOZOIC POLYZOA. 27 
Glauconome Goldfuss, and retain the term for Carboniferous, as well 
as Cambrian, or Bala species. He adopted this, and I also favoured 
the suggestion, hence the paper presently to be referred to, came to 
grief before it was printed in the Journal of the Geological Society. 
For years Mr. Shrubsole and myself had been working amicably 
together, and I suggested that if he made the paper a joint one I 
would allow him to do the descriptive part, and I would furnish him 
with details of a new sub-order for publication. Accordingly, on 
June 21, 1882, a paper entitled The Silurian Species of Glmi- 
conome, and a suggested classification of the Palaeozoic Polyzoa," was 
read. The paper, as written, was never published, and an abridged 
report only was inserted, two years after, in the Journal of the Geo- 
logical Society, 1884. There was, however, an abstract publication 
of the original paper inserted in the " Abstracts of the Proceedings 
of the Geological Society of London," No. 424, sessions 1881-82, 
p. 109 (June)/'' From the pages of the above work I now quote. "The 
authors discussed the history of our knowledge of the genus Glau- 
conome, and especially of the Silurian species. They then charac- 
terised the genus, to which they refer only the Bala species, formerly 
regarded as identical with G. disticha, Goldf , but which they describe 
as G. Sedgwickii Shrubs. Glauconome disticha, Goldf, from the 
Wenlock of Dudley, is taken as the type of a new genus Arcanopora. 
The authors then remarked upon the characters on which the 
classification of the Polyzoa is founded, drawn from the study of 
recent forms, and stated that throughout the Cainozoic and Mesozoic 
se ries no Polyzoa are known which cannot be referred to these recog- 
nised groups. Many Palaeozoic forms are in a different case. The 
orifices seen on the surface are not, in many instances, the mouths 
of the cells, but those of what the authors call vestibules beneath 
which the true cell mouth is concealed. For these types they propose 
to found a new sub-order under the name of Crj^tostomata, and 
characterised by having the Zoaecia sub-tubular, or in section, slightly 
angular, and the orifice surrounded by a vestibule or otherwise con- 
* See Note on Glauconome disticha, from the Bala beds, &c., by G. W. 
Shrubsole; also in the Geol. Magazine, August, 1882, pp. 381-.'^82. 
