PLATE XXVII. 
Fig. 
1. Platysomus striatus, Agassiz. a, Flank scale, magnified ; 6, 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. 
