172 
VINE: CARBONIFEROUS POLYZOA. 
leave the species as somewhat doubtful. 
Locality : Castleton, Derbyshire. 
Genus GLAUCONOME, Goldfuss. 
(See paper by G. R. V. on Carb. Polyzoa, North Yorkshire, Trans. Geol. 
and Polytech. Soc., 1881).* 
If we except Retepora pluma, which has yet to be worked 
out, no Glauconome was described by Phillips in his Geol. of Yorks. 
In his Palceozoic Foss., a species which is described as occuring in 
the Upper Devonian, is named G. bipinnata, and McCoy in describ- 
ing a similar species from the Carboniferous Limestone, Dungannon, 
furnishes us with a few particulars respecting his type. It appears 
to me that Phillips’ species was founded upon a peculiar habit, if so, 
this species is not unique in its bipinnate arrangements. Mr. John 
Young, of Glasgow, writing me about English and Irish Glauconome, 
says (Oct. 1877) “ We seem to have no Glauconome in Scotland 
answering to the description of G. grandis, and G. gracilis, McCoy, 
although both have been noted in former lists from our beds. 
McCoy states that G. grandis has very small round prominent 
pores, one at the origin at each branch and three between. G. gracilis 
is said to have in each side a row of very large circular prominent 
pores which strongly indent the margin, one at the origin of each 
branch and one between, and about half the diameter apart. After 
very close examination of all our specimens, I have never found a 
fragment agreeing with either of the above species. I am inclined 
to think that we have only one species that agrees with any of 
McCoy’s description, that is G. bipinnata, Phillips. In the shales 
from Capelrig we find a form wfith a straight crenated keel, or midrib, 
that has an oval pore at each branch and one between, reverse 
strongly granulated. McCoy does not mention anything about 
the keel in his description, he only says ‘ obverse with two rows of 
approximate oval pores, reverse with strong granulated striee.’ If it 
can be shown that G. bipinnata is not keeled in the typical form from 
* In my fourth British Association Report on Fossil Polyzoa, 1883, I have 
altered — for reasons there given, — the generic name Glauconome, for that of 
Pinnatopora. As this paper, however, was written and read before the change 
was made, I have allowed the references to stand. I reserve the Genus Glau- 
conome Goldfuss for Silurian specimens only. 
