species is sometimes taken by trawlers and trap fishermen. A 

 specimen in the collection of the Narragansett Marine Laboratory 

 was taken in Narragansett Bay in 1938. This species is generally 

 found ranging from 6 to 12 inches (TL). It is of no economic im- 

 portance. 



Genus Centrolophus 



(125) Centrolophus niger (Gmelin) 1789 

 Black ruff 



Specimens: (PLATE 77) 



This is a European species which is very rare in New England 

 waters. Bigelow and Schroeder (1953 b) report three records from 

 the Gulf of Maine, in 1890, 1936 and 1951. On October 10, 1957, 

 the trawler Irene and Walter captured a 13-inch (TL) black ruff in 

 an otter trawl, four miles south of Block Island. This is the first 

 Rhode Island record for this species. This specimen is now in the 

 fish collection of the Zoology Department of the University of 

 Rhode Island. 



Family Carangidae 

 Genus Naucrates 



(126) Naucrates ductor (Linnaeus) 1758 

 Pilotfish, rudderfish, shark pilot 



Specimens: 



This species is common along Rhode Island coastline during July 

 and August. Specimens were observed and collected in 1957 from 

 Watch Hill, Weekapaug, Point Judith and Newport. They ranged 

 from five to nine inches (TL). 



Genus Seriola 



(127) Seriola zonata (Mitchill) 1815 

 Rudderfish, amberjack, pilotfish 



Specimens: (PLATE 40) 



This species is found in Rhode Island waters from July to Oc- 

 tober. A specimen, six inches (TL), was taken by the trawler Jane 

 Dore on July 30, 1957, four miles east of Watch Hill Point. Two 



53 



