CLASS PISCES. 109 







Day says (Fishes of Great Britain , vol. ii., p. 166) it is very 

 common about London. 



Carassius auratus. Bleeker. GOLD FISH. 



This is another fish which does not occur in our rivers. 

 It is, however, naturalised in ponds throughout the county. 

 Genus BARB us, Cuv. 



Barbus vulgaris. Fleming. BARBEL. 



This is probably another introduced species, as far as 

 Essex is concerned. It occurs in the lake known as Dagenham 

 Breach, and also, according to Day (Fishes of Great Britain, 

 vol. ii., p. 171) and Yarrell (British Fishes , vol. i., p. 322), in 

 the Lea. From that partially-Essex river, Barbel of nine 

 and ten pounds weight are reported (Field, Jan. 5th, 1884, 

 p. 18; Land and Water, Aug. I3th, 1887, p. 92). 



Genus GOBIO, Cuv. 



Gobio fluviatilis, Flem. GUDGEON. 



A fish that occurs in numbers in all our rivers, but is 

 mostly local. It abounds in the Lea, and is known in the 

 Stort. 



Genus LEUCISCUS, Cuv. 



Leuciscus rutilus, Fleming. ROACH. 



Found everywhere throughout the county, in streams and 

 ponds. 



Leuciscus cephalus, Fleming. CHUBB. 



Until quite lately, this was another inhabitant of the Lea 

 only among Essex rivers. Now it must be added to the list 

 of Blackwater fish, as the Witham Angling Society has 

 turned into that river 350 specimens (Field, Feb. 29th, 1896, 

 p. 320). Lieut. Croft mentions it (Trans. Herts. Nat. Hist. 

 Soc. t vol. ii., p. 13) in his list of fishes of the Lea, and it is 

 frequently taken at Waltham. 



