22 ICHTHYOLOGY. 



For the information of the ichthyologist, it may he proper 

 to mention that the following are the chief works treating of 

 the fishes of Sweden and Norway, viz. : Artedi's " Ichthyolo- 

 gia," Lugd. Batav. 1738; Pontoppidan's "Natural History of 

 Norway," (Engl. Transl. London, 1755); Linnaeus' " Fauna 

 Suecica," 2nd Ed. 1761; Retzius' " Fauna Suecica," 1800; 

 Nilsson's " Prodromus Ichthyologies Scandinavicse," a concise 

 treatise published in 1832; "Fiskarne i Morko Skargard," 

 1835, by Ekstrom, and subsequently translated into German, 

 under the title of " Die Fische in den Scheeren von Morko ;" 

 " Skandinaviens Fiskar," an incomplete though admirable 

 work, jointly edited by Professor Sundevall, M. Ekstrom, and 

 the late lamented Professor B. Fries, and most beautifully illus- 

 trated by that highly-talented artist, M. von Wright; and 

 " Danmark's Fiske," by M. Kroyer, also a very superior work, 

 though not yet quite completed. 



From several of the works enumerated being rather out 

 of date, and the extreme conciseness or incompleteness of 

 the rest, one is unable to obtain full and correct informa- 

 tion regarding ichthyological subjects. I am happy to state, 

 however, that Professor Nilsson promises us shortly a 

 full account of the Scandinavian fishes (a portion of the 

 work, indeed, has already appeared) which will in a degree 

 make good the deficiencies that myself and others at 

 present labour under. 



The Common Perch (Abborre, Sw. ; Perca flwviatilis, 

 Linn.) was abundant with us, as well in the Gotha, as in the 

 Wenern. This fish is widely distributed over Scandinavia, 

 being found in most of the lakes and rivers from the 

 extreme south of the peninsula to Lapland ; indeed, from 

 its larger size in the far north, it is believed to thrive 



