Cheiracanthus grandispinus M’Coy
This medium to large acanthodian with very short inserted spines is very rare in the Sandwick fishbed but can be found occasionally as loose spines and scales at other localities. Shown here is a head from the Sandwick fishbed and a complete specimen, lacking the dorsal fin spine, from Achanarras. The juvenile specimens were probably often prey for the bigger fish.
The hole in the body was to sample scales for a thin section.

Complete fish lacking dorsal fin spine, Achanarras, Caithness.