CARBONIFEROUS CORALS AND BRACHIOPODS 115 
Haime to be a purely compound form, and this character, 
combined with the less numerous septa, has formed the 
only distinction between this and the preceding species. 
If, however, we examine the internal structure, we find 
that there is a practical absence of anything approaching 
a central tabulate area ; the central area is occupied by a 
confused mass of vesicular tissue, more or less regularly 
arched, the arches usually somewhat depressed at their 
summits. 
Amongst the different forms of C. Murchisoni which 
I have had sectioned vertically were some of the short, 
broad, turbinate specimens, usually regarded as typical 
specimens of C. Stutchhuryi ; these specimens, instead of 
showing a tabulate central area, exhibited a type of central 
area exactly similar to that shown by C. regium. Conse- 
quently, I am inclined to regard the broad, turbinate, 
simple cyathophyllums, with wide convex rims and scarcely 
any trace of external annulation, as the simple forms of 
C. regium, and in this opinion I am strengthened by the 
fact that such forms only occur at the horizon where 
C. regium is found, viz. at the very top of the series. 
It is interesting to note how similar these simple forms 
are to the simple form of C. helianthoides, so common in the 
Devonian abroad, and as in that species, the number of 
septa in the simple form considerably exceeds that in the 
compound. 
There are a few perfectly typical specimens of the com- 
pound form in the collection and one vertical section of a 
fine specimen of the simple form. 
The specimens are undoubtedly from the uppermost 
beds, and, most probably, from the quarry on Rownham 
Hill. 
Campophyllum. 
As already pointed out in the discussion of the genus 
K 
