Notices of Memoirs — Classification of the Carboniferous Series. 117 



Having since obtained a careful drawing, I think it may be 

 desirable to place the earlier figure of this specimen beside the later 

 figure, in order to show how Mr. Scudder was misled by the former, 

 and that in fact (as may be seen by comparing the woodcut Fig. 2 

 below, with the drawings of other examples given on Plate I.) there 



Fig. 1. Pig. 2. 



Euphoherin ferox, Salter, Coal-measures, Coalbrook-dale ("Hope Collection"). 



Fig. 1. — Eougli copy of original figure in " Brodie's Fossil Insects" (1845, pi. i. 



%■ 11)- 

 Fig. 2. — The same specimen re-drawn to show that there are only two pairs of 

 spines to each segment. 



can be no reason for separating this specimen from its congeners, 

 with which it agrees in every particular. 



The lateral spines are bifid, there are two submedian spines, broken 

 off as usual : the supposed third pair of spines on each somite, one 

 on either side above the pair of lateral branched spines, are (as 

 already pointed out on p. 2 op. cit.) only depressions in the tergum 

 near the base of these lateral spines. This led to the error of attri- 

 buting the Oxford specimen to the genus Acantherpcstes, to which 

 it certainly does not belong. 



I. — On the Classification of the Cakonifekotjs Limestone 

 Series; Northumbrian Type. By Hugh Miller, F.K.S.E., F.G.S.^ 



TT is now twenty years since the late George Tate, of Alnwick, 

 published a completed classification for the Carboniferous 

 Limestone Series of North Northumberland. For more than half 

 that period it has been set aside as of merely local value. It will 

 be the endeavour of this paper to restore it to its true place. 



^ Eead before British Association, Birmingham, in Section C (Geology). 



