5gJ 



SPUR MACKREL. 



Scomber Calcar. S. argenteus, dorso sulfusco, spinis dorsalibus 



quatuor divergent ibus. 

 Silvery Mackrel, with brownish back, and four diverging dorsal 



spines. 

 Scomber Calcar. Bkch. 



SOMEWHAT allied to the former species, but of a 

 broader or shorter shape : length ten or twelve 

 inches : before the dorsal fin four very strong spines, 

 diverging in such a manner as to bear some resem- 

 blance to a spur : first ray of the dorsal fin consists 

 also of a strong spine : before the anal fin two 

 strong spines connected by a membrane : dorsal 

 and anal fin of similar size, and -continued nearly 

 to the tail, which is strongly forked. Native of the 

 African seas. 



RHOMBOID MACKREL. 



Scomber Rhombeus. S. argenteus, corpore rhombeo, squamis 



parvis. 



Silvery Mackrel, with rhombic body and small scales. 

 Centrogaster argenteus. Lin. Gmel. 



LENGTH about five inches : shape rhomboid : 

 colour silvery, with very minute scales : dorsal and 

 anal fin triangular at the fore-part and scaly at the 

 base : tail glaucous, and slightly divided. Native of 

 the Arabian seas. Observed by Forskal. 



