5 
SPANrSH MACKAREL. 
the 28th. of June; when it was taken in a net in company 
with many of the Common Mackarel. In its stomach a mass 
of pulp of the colour of lead, together with a considerahle 
number of parasitic worms. It measured scarcely as long as 
the Common Mackarel caught at the same time, but was more 
round and plump; the length from the snout to the end of the 
middle of the tail twelve inches and a half; the body growing 
slender near the tail, but less abruptly than in the former 
example. Snout more produced than in the Common Mackarel, 
and pointed; jaws equal, with moderate teeth; head less heavy 
than in the former example of the Spanish Mackarel. Eye 
large; scales well marked on the back and sides, not visible 
on the belly; nor did I perceive any on the upper portion of 
the gill-covers. First dorsal fin in a chink; the rays much 
higher than in the Common Mackarel, and extending along 
the back more than equal to the space between its termination 
and the second dorsal; so narrow at its extremity that the two 
last rays are hid in the chink. Second dorsal and anal less 
angular than in the other specimen of the Spanish Mackarel, 
and their terminal rays lengthened out. Five rather long finlets 
above and below; tail forked, with a keel above and below at 
its root; ventral fins broad. Lateral line passes onward to sink 
midway between the two dorsals. The general colour fine 
lively blue, with deeper stripes as numerous as in the Common 
Mackarel; sides and belly covered with dark spots, some of 
them ocelated, and gyrations, of various sizes, on a brilliant 
white ground; smaller and more numerous near the tail. No 
tint of yellow behind the eye as in the Common Mackarel. 
Pectoral, ventral, and the lower finlets, tinged with yellow; as 
the tail in a slight degree. The first dorsal fin has eleven 
rays. No air-bladder. 
