98 CARBONIFEROUS CORALS AND BRACHIOPODS 
I consequently devote less space to this genus than its 
prevalence seems to demand ; for I am convinced that the 
separation of species should be made, not from a few 
specimens in a collection, but from the thousands of sections 
and weathered specimens to be actually seen, in situ, in the 
field. 
Syringopora ramulosa, Goldf. 
Poor but indubitable specimens of this species occur 
in the collection which have been derived from the “ Upper 
Limestones,” Leigh Woods, and Brockley Combe. 
The tubes are v/ell separated (3’5 to 8 mm. apart), and 
continuously, but irregularly, fork at an angle of about 
30° ; their cross sections are almost filled up and are of 
considerable diameter (1-5 to 2 mm.). 
Syringopora distans, Fischer (S. catenata, de Kon.). 
This I believe to be a mere mutation of S. ramulosa, in 
w'liich the tubes are somewhat narrower and placed at 
less distance apart, but the complete demonstration of the 
transition must be worked out, in the field, from a very 
large series of specimens. 
There are three or four specimens in the collection, 
derived from “ Upper Shales,” Clifton, “ Behind Old 
Well House,” ete. 
The diameter of the tubes averages from IJ to 2 mm., 
and they are placed at a distance apart equal to 2 or 3 times 
their diameter ; the frequency of the connectors can only 
be deduced from the fact that, in the horizontal sections, a 
minority of cross sections are connected. 
Syringopora geniculata, Phill. 
There is a small, but perfectly typical, weathered speci- 
men labelled ‘‘ Clifton.” 
