346 Storer on the 
between the extremities of the caudal rays, between 
three and four inches. 
The fin rays are as follows: D. 10-12; P. 17 ; V. 
5; A.12; C. 20. 
S. colias. Gmel. The Spanish Mackerel. 
Cuv. et Valenc. Hist. Nat. des Poiss. t. viii. 39, pl. 209. 
Yarrell's British Fishes, vol. i. 131 et pl. 
This is a rare species upon our coast; some sea- 
sons they are scarcely seen at all. It is generally 
known by our fishermen as the * Spanish Mack- 
erel.” i 
Length of the specimen before me, eleven inches ; 
depth two inches. Form elongated, very round and 
plump, tapering towards the tail at the origin of which 
it is very small. Upper part of the body of a light 
green color, with numerous contiguous beautifully 
undulating lines of a darker green passing down the 
sides and just crossing the lateral line ; immediately 
beneath the lateral line, of a dull bluish color, with 
indistinct circular brown blotches. Abdomen lighter 
colored, but, as well as the sides, presenting cupreous 
reflections. Head, two and a half inches in length ; 
flattened above; compressed on the sides; rather 
pointed at the snout. Eyes large; full; pupils 
black ; irides silvery. Nostrils double ; the posteri- 
or, vertical, just in front of the eyes ; anterior, circu- 
lar, in front of the posterior, equal to the distance be- 
tween the posterior and the eye: diameter of the 
eye, rather less than the distance between the eyes. 
