PLATE XXVII. 



Fig. 

 1, Platysomus striatus, Agassiz. a, Flank scale, magnified; h, under surface of ditto; 



c, scale from the lateral line, magnified ; d, scale from 



near the tail, ditto. Marl-slate, Ferry Hill. Cabinets 



of Mr. J. S. Bowerbank, and Sir Philip de Malpas Grey 



Egerton, Bart., M.P. 



