78 BOARD OF AGRICULTURE. 



Sub-class Teleostei. ScoMBROtoiE. 



Stxontme. — Scomber scomber, Schoepf. 



La maquereale printanier, Cuv. et Val. 



Scomber grex. DeKay. 

 Fall ilackerel. 

 Characteristics. Small, a black spot at the base of the pectorals 

 and tip of lower jaw. Dorsal bands very tortuous. Length 8 

 to 10 inches. 



There have been doubts in the minds of some Ichthyologists 

 in regard to this species being a spring mackerel {Scomber ver- 

 nalis) of a different age. 



Genus Thynnus. Guv. 



Gex. Cn^vR. Form of the body like that of the Scomber, but less compressed. 

 A kind of corselet around the thorax, formed by scales larger and coarser than 

 those of the rest of the body ; a long and elevated crest on each side of the tail. 

 The anterior dorsal reaching almost to the posterior one. Numerous finlets behind 

 the dorsal and anal fins; a single row of small, j^ointed, crowded teeth in each 

 jaw. — Storer. 



Of this genus we have one species on our coast the 



Thijnnus secundo dorsalis. Storer. 

 American Tunny, Horse Mackerel, Albicore. 



It comes on to our coast in the early part of summer, when it is 

 very lean ; by. autumn, before it diappears, it is very fat and affords 

 a large quantity of oil from its head and belly. It frequently 

 grows to a large size, weighing from 500 to 1000 pounds. 



Its characteristics according to DeKay are — very large and long 

 pectorals, corselets pointed behind, no colored lines or spots. 

 Length 9 to 12 feet. 



Kay formula — 



D. 14, 1, 23 — X ; P. 34, V. 1, 5 ; A. 2, 12 — IX ; C. 19. 



This fish is placed by Prof Gill into the sub-family Orycnince, 

 and into Cuvier's genus (Oi-ycnus.) This species he terms 



Orycnus secundo dorsalis. Gill. 



Genus Cybium, Guv. 



Gen. Ciiab. An elongated body without a corselet, and large compressed sharp 

 teeth. The palatines have only sliort teeth. 



