PLATE XX. 
calls the Rough Ray, is of this species : an opinion, we think, not 
unlikely, although his description does not strictly agree with any of 
those specimens we have had an opportunity of noticing. In small 
subjects, the tuberculated and prickly appearance of the skin is less 
obvious, in proportion than in the larger ones ; but the triple row 
of spines on the tail, and single one on the back, is sufficiently 
apparent in the smallest we have seen. 
This species is sometimes brought to the London markets, and is 
known on the coasts of Pembrokeshire by the name of Sand Ray. 
