THE FISHES OF GEE AT YARMOUTH. 543 



the Norfolk and Norwich Naturalists' ' Transactions ' in the years 

 1890-91 (pp. 227-30); 1891-92 (pp. 323-28) ; 1894-95 (pp. 114- 

 17) ; 1895-96 (pp. 225-27) ; 1896-97 (pp. 293-95). " A Sketch 

 of Yarmouth Fishes " also ran through the * Naturalists' 

 Chronicle' in 1896-97. 



My best thanks are here tendered to Mr. T. Southwell, 

 F.Z.S., of Norwich, for the ever-ready help he has afforded in 

 identifying new species, and unravelling knott}^ points ; indeed, 

 it was greatly at his instigation that I have undertaken the task 

 of working out the fishes of the district. 



The following abbreviations will be helpful : — * my own 

 additions to the local list; t additions to county list; C. com- 

 mon ; R. rare ; F. frequent ; R. R. rather rare ; A. accidental ; 

 (?) doubtful species ; [ ] has a doubtful claim to Yarmouth list. 



Gasterosteus aculeatus. Three-spined Stickleback. C. — 

 Abundant, and generally alone inhabiting the ditches where found. 

 Brackish water does not inconvenience it, and I have found it alive 

 and strong in the refuse left by the draw-netters on the beach. 

 It undoubtedly comes down involuntarily on the ebb, thousands 

 being drawn through the sluice-gates opening from the marsh- 

 ditches into the rivers. Variously armoured varieties occur. 

 Local, " Stanickle"; male, "Redbreast." 



*G. pungitius. Nine-spined Stickleback. C. — Shuns the 

 society of the preceding species, which bullies it; generally but 

 not always found by itself. Prefers entirely fresh water. Like 

 G. aculeatus, is often spotted with the parasitic fish-louse, Argulus 

 foliaceus. Local, " Tinker " ; " Sweep." 



G. spinachia. Fifteen-spined Stickleback. F. — Is frequently 

 taken in summer in Shrimp-nets. Often found on Breydon ; 

 occasionally "nesting" there. Local, " Sawback." 



Percafluviatilis. Perch. C. — Numerous in the broads and 

 rivers ; often takes a bait in brackish water, on the verge of 

 the "salts" coming up on the flood. It appears to be seeking 

 the Shrimps which come with it. Is very partial to the Ditch 

 Prawn, Palcemon varians. Hickling Broad, Reedham Ferry, and 

 several other of its favourite haunts might be mentioned, but 

 large specimens are much less frequently taken than formerly. 

 It is said that the Anacharis weed has injuriously invaded many 



