74 



PEocEEDEsres or tke geological society. [Api"- 28, 



rock to resemble a mass of fossilized maccaroni. Other beds are 

 marked bj projections on their under sides, which, I suppose, repre- 

 sent the tracks of worms burrowing in the sand and turning to ascend 

 again on reaching the stiff clay beneath. Thev are oval prominences, 

 with a deep furrow along the centre, and more delicate furrows ex- 

 tending from this to the margins. They belong to the genus 

 Nereites ; but it seems unnecessary to give them a specific name. 

 (Figs. 6 and 7.) 



Fig. 6. — Annelide-markings, Lower Coal-measures , Nova Scotia. 



Fig. 7. — Annelide-marTcings, 

 Lower Coal-measures, Nova 

 Scotia. 



Fig. 8. — Trade of aCrustacean? , 

 Lower Coal-measures, Nova 

 Scotia. 







tl 



Annelid-marks similar to those above noticed occur in various 

 parts of the carboniferous system in Nova Scotia. Five examples 

 from the upper coal-measures were described by the author in 



