FISHES. 269 



away in summer. They appeared always to travel west, and 

 usually came in at spring-tides. In Orphir several men used 

 to set nets for them. Each boat set two nets, each net about 

 50 or 60 yards long (60 fathoms before the net was * backed ' 

 was the usual length), and at a good haul got seven or eight score 

 of Dog-fish in each net. Of late years, i.e. during the last five 

 or six years, they have not infested Scapa Flow as formerly, 

 and though shoals have passed through, they have been there 

 one day, but gone the next. They were split and dried and 

 sold for food, and oil was made from their livers." 



Low also mentions their abundance at times, and also that 

 their presence drives off other fish from the coast. 



Laemargus boreal is (Seoresly). Greenland Shark. 



Occurs in Orkney, but more commonly in Shetland. J. G. M.-H. 



Family RHINIDJE. 



Rhina squatina (L.). Angel Fish, 



W. Baikie says this fish is rare in the Orkneys. 



Division BATOIDEI. 

 Family RAIID-ffi. 



Raia clavata, L. Thorn back Ray, 

 Common. 



Raia radiata, Donovan. Starry Ray. 



Mr. Moodie-Heddle has seen several of these fish amongst the 

 Thornbacks brought in for sale from ground outside Copinsay. 



