TI3HES. 



261 



1. ACANTHOPTEKYGII (Thorny-fin) . 



The Acanthopterygii include a great number of our 

 ordinary useful Eishes, as Mackerel, Perch, Tunny, 



FIG. ST. 1, PERCH (Perca fluvia'ilis). 2, MACKEREL (Scomber vulgaris). 

 3, GURNARD (Trigla Gurnhardus). 



Gurnard, &c. (fig. 37). The Perch is a good example 

 of this* order, the sharp spines on its dorsal fin being 

 well developed, and dangerous for anglers to handle. 



2. MALACOPTEBYGII ABDOMISTALES (Abdominal soft-fin) , 



The abdominal Malacopterygii include the Pilchard, Her- 

 ring, Pike (fig. 38), Salmon (fig. 39), Anchovy, Trout, 

 Roach, Chub, Tench, and many more of the Fish which 

 inhabit our streams and the sea. 



