66 EEPORT OF COMMISSIONERS OF INLAND FISHERIES. 



84. Naucrates ductor (Linnaeus) . Pilot-fish. 



Geog. Dist.: Pelagic fish found in all warm seas. Occasional on our Atlan- 

 tic coast from West Indies to Cape Cod. 

 Season in R. I.: Occasionally taken from July to October. 



85. Seriola zonata (Mitchill). Rudder-fish; Pilot-fish; Shark-pilot. 

 Geog. Dist.: Cape Cod to Cape Hatteras. 



Season in R. I.: Single specimens occasionally taken from July to October. 

 A specimen in possession of the Commission is dated 1899. Three speci- 

 mens from Newport are in the U. S. National Museum. (Proc. U. S. Nat. 

 Mus., 1880, 91.) 



Food: Stomach of one individual contained fragments of a butter fish. 



86. Seriola lalandi (Cuvier & Valenciennes). Amber-fish. 

 Geog. Dist.: Brazil to Cape Cod. 



Season in R. I. : Rare. Taken in traps occasionally during summer months. 



87. Decapterus punctatus (Agassiz). Scad; Round Robin; Cigar-fish. 

 Geog. Dist.: Cape Cod to Brazil. 



88. Decapterus maearellus (Cuvier & Valenciennes). Mackerel Scad. 

 Geog. Dist. : Warm parts of Atlantic north to Cape Cod. 



Season in R. I.: Occasional in October. Prof. Jenks is authority for the 

 statement that none are ever taken over 6 inches long. Specimen in the 

 U. S. National Museum, taken at Newport by Mr. Samuel Powell. (Bull. 

 U. S. Nat. Mus., 1879, 42.) 



Food: Copepods and annelids. 



89. Trachurus trachurus (Linnaeus). Saur el; Gascon. 



Geog. Dist.: North Atlantic, chiefly on coast of Europe, south to Spain 

 and Naples. Taken also at Newport; Pensacola; Cape San Lucas. Only 

 4 American specimens are known. 



Season in R. I.: Goode describes specimens from Newport. (Proc. U. S. 

 Nat. Mus. 1882. 269.) 



90. Trachurops crumenophthalmus (Bloch). Big-eyed Scad; Goggler. 

 Geog. Dist. : Both coasts of tropical America, north to Cape Cod. 



