116 Black-fish; Scad; Boar-fish. 



The Stromateidce is a closely allied family, whereof one form 

 even rarer than the Tunny was captured at the mouth of the 

 Coliie, 20th December, 1881. Our colleague Dr. Laver (op. 

 cit. and Zool. 1882, p. 75) called attention to this fish, 

 showing it to be the rare Black-fish (Centrolophus pompilus)* 

 The Scad and Dory Families (= Carangidce and Cyttidce). 

 (1.) HORSE MACKEREL or SCAD (Caranx trachurus) Webb 

 says is common about Dover, but the fishermen there more 

 often throw them overboard as worthless. It is mentioned 

 in Boys' List of Fishes of Sandwich, 1792. Though they 

 are at times numerous, westerly in the Channel they appear 

 but rarely in the market. Still in eome parts of Cornwall 

 they are split and salted for food and possess a mackerel 

 flavour. Hitherto the Scad does not seem to have been 

 included among the Thames estuary fauna. That they visit 

 it is tolerably certain, for we have obtained young speci- 

 mens on several occasions (November and December) during 

 the winter of 1898. These were obtained in the trawl almost 

 right opposite Leigh at the mouth of the Hadleigh Ray. 

 The smallest was 1*6 inch long. One 4 inches long came 

 up in Gr. Gilson's trawl when shrimping off the Shoebury 

 Sands, 18th December, 1900. We have not met with adult 

 forms, so remain in doubt whether the above were bred in 

 the neighbourhood. 



(2.) The BOAR FISH (Capros aper) has appeared vicariously 

 all round our Fisheries District only within the last 20 years or 

 Fig. 13. so. In June, 1879, two were got in 



the shrimp-trawl off Harwich. The 

 same month about a dozen or more 

 were taken by the Leigh shrimpers off 

 Sheppey, below Sheerness ; and the 

 Southend fishermen were also fortunate 

 in getting a few. The men called 

 BOAR FISH (Capros aper). them " Bed Dorees,"f though none 

 (Young; reduced.) remembered seeing them before in the 



* Gunther, Ann. and Mag. Nat. Hist. IX. (1882), p. 204 and p. 338; see also Harting 

 Zool., 1882 p. 152. t Carrington, Zoologist, Aug., 1879. 



