REPORT OF COMMISSIONERS OF INLAND FISHERIES. 61 



SQUALID^. The Dog-Fishes. 



10. Squalus acanthias (Linnisus). Dogfish; Spiny Dogfish. 



Geog. Dist.: Atlantic, Nova Scotia (Cornish, 1907), south to Cuba and 

 from the North Cape to the Mediterranean. 



Migrations: Probably moves northward in spring a little after the mack- 

 erel, returning from September to November. 



Season in R. I.: The last of April or first of May to November. Rare in 

 the Bay, but so common outside as to be a nuisance to the fishermen. 

 Follows the school of scup in spring. 



Habitat: Open water, following schools of pelagic fishes. (Field, Report 

 Mass. Fish and Game Comm., 1906.) 



Reproduction: Viviparous. 



Food: Fishes, especially herring, mackerel, and scup. Also Crustacea and 

 jelly fishes. 



Size: Two to three feet. 



SQUATINID^. The Angel Sharks. 



11. Squatina squantina (Linnseus). Angel Fish; Monkfish. 



Geog. Dist.: Warm seas; common in the Mediterranean; rarely on Atlantic 

 coast from Cape Cod southward; common on the coast of California, 

 especially from San Francisco to Monterey. At Woods Hole, specimen 

 taken in fish trap at Menemsha Bight, September 1, 1873, (Smith, 

 1898). One taken at same place a few years later. Not common in 

 New York waters but occasionally seen at Gravesend Bay in summer. 

 (Bean, 1903). 



Season in R. I.: Specimen in Agassiz Museum from Newport (Bean). 

 Specimen taken West Passage trap, September 14, 1909. 



Reproduction: Viviparous, producing about twenty young at a time. 

 (Bridge, 1904.) 



Size: Two to five feet in length. 



RAJID^. The Skates. 



12. Raja erinacea (Mitchill). Summer Skate; Old Maid. 

 Geog. Dist.: Virginia to Maine. 



Season in R. I.: Abundant throughout the year. Specimens 4 inches 

 long and upwards, taken in beam trawl south of Plum Beach Light, 

 December 22, 1908. 



Reproduction: Eggs common in fish traps in August and September, 

 July 22, 1908, eggs taken in abundance in dredge to eastward of Hope 

 Island. Eggs found in Gravesend Bay, Long Island, in March. (Bean.) 

 (Putnam, Skates Eggs and Young, Amer. Nat. Ill, 1869, 617.) 



