CARBONIFEROUS CORALS AND BRACHIOPODS 13S' 
men are sufficient excuse for deferring any discussion of its. 
relationship in this place. 
Inarticulate Erachipods : — 
Discina : 
Discina nitida, Phill, is represented by several sped* 
mens from the “ Palate Bed ” of quite typical form, 
(cf. Discina bulla, McCoy). 
Lingula : 
Lingula mytiloides, Sow.^ is represented by several poor 
specimens of the mutation Lingula parallela, Phill. 
from the “ Palate Bed.” 
Lingula Scotica. To this species I refer a partially 
buried specimen from just above the “ Palate Bed.” 
IV. SUMMARY. 
The most interesting results arrived at in this paper are 
as follows — 
The Corals. 
(1) The description of a new species of Ghcetetes. 
(2) The identification of a species, common in the lower 
beds, with Cleistopora geometrica, Ed. and H. 
(3) The re-introduction of the genus Caninia to cover the 
group typified by Caninia (ZapJirentis) cylindrica, 
Scouler, and a description of the well-known Bristol 
mutation. 
(4) The reasons for regarding the well-known Bristol form 
as a mutation of Lithostrotion basaltiforme, Phill. 
(5) The inclusion of the elongate forms of Gyathophyllum 
Stutchburyi, Ed. and H. with Gyathophyllum Mur- 
chisoni, Ed. and H., and the separation of the short, 
