36 



SCANDINAVIAN FISHES. 



Ill liis 'Travels in WestergotlaiHr (1746, p. 259) 

 Linnaeus gives a description of some perch-iishing in 

 Lake Yngen in ^^'^ernlland in which the tackle consisted 

 of a circular net two yards in diameter. "The Perch 

 always keeps close to the crags or rocks in the lake. 

 Thither the iisherman rows and dro])S the net to the 

 bottom, wlicreupon tlie Pci-cli, whicli are always fond of 

 rings and circles, l)egin to s]jort in crowds above it. 

 \\\ivu the net is drawn up, the Perch becomes frigh- 

 tened, darts towards tlie bottom and is thus taken in 

 the net, often in considerable numbers." 



The Pei'cli is also often caught l)y nearly all sorts 

 of tisliing-tackle set near its haunts for other fish. Thus 

 large Perch are often taken l)y trolling, on a hook drawn 

 along the surface of the water {dragkrok) and on a line 



fastened to a pole which is fixed in tlie bank (sfdngkrok). 

 In the autumn too it is often struck with a gig. 



Besides the culinary value of the Perch, its usefulness 

 in other ways deserves mention. It is a fact well known 

 from the earliest times that, by boiling, an excellent 

 glue may be extracted from its skin. In several places 

 in Sweden the scales are used in making all sorts of 

 personal ornaments, being arranged in the sha|je of 

 leaves and flo^vers for bracelets, necklaces, earrings and 

 ornaments for the hair. As the Perch is of such com- 

 mon occurrence, it is a comparatively cheap fish. In 

 spring the average price of a middle-sized, live Perch 

 in Stockholm is from 2V4 d. to 8^4 d.; at midsummer 

 it is scarcer and the ]jrice higher, in autumn the price 

 sometimes rises as high as 5\,j d. and during ^vinter 

 it is sometimes as much as G'/^ d. (Ekstrom, Smitt.) 



G 



jENUS 



STIZOSTEDIUM- 



Bodu ohloriff. Scales small icith the margin sJiaiyly dentated. Fyeoi)ercidmn and shoidder-girdle serrated {inferior 

 margin of the preorhital hones even). Cheeks scalg^ scattered scales on the occiput. Teeth set in one rote (some- 



times irregularly in 



or 



on the intermaxillaries, the loiver jatc and tlie pakitines., with scattered canine teeth 



largest on the anterior ^yart of these hones. A transverse row of cardiform teeth (often disappearing in older spe- 

 cimens) on tlie vomer. Tongue ivithout teeth. From S to 7 pyloric appendages. Pseudohranchice complete. Bran- 

 chial niemhranes separate with 7 rays on each. From 13 to Hi rays in the first dorsal Jin. In the anal Jin 2 

 spinous rays; the base shorter thiui that of the second dorsal fin. In the caudal fin 1.5 branched rays. 



(_)f this genus there are assumed to be 2 distinct 

 species from the Eastern Hemisphere and 2 from the 

 Western, and tlie difference between the types of the 



Old and New Worlds is greater in this case than in 

 the genus Perca. 



THE PIKE-PERCH (sw. gos). 

 STIZOSTEDIUM LUCIOPERCA. 



Plate III, fig. 2. 



TJie posterior upper corner of the gill-cover without spines {in older specimens), but two or three dentations on 



the margin. The colour of the body grayish green, becoming lighter towards the belly, where it is silver-white.i 



darker towards the hack., vhere there are about 12 transverse black stripes. 



1 



R. l/r. 7; D. IS'',' 

 (J. x+lb+j-; L. lat. 88— 9-2-''. 



1'' 2 



. A. ~ ,. 



1+21' 12''' 



P. 2 + 12 + 2'' ; V. 



iSyit. l.iwiuperca, Miilas et Nagemulus Auctoriim, Akt., Geii., p. 

 39; <Syn., p. 67; Spec, p. 70. 



" ScHM. Rafinesque, Iclilli. Oh.; vide .loitu. Gilb., 1. c. 

 '' Someliines 14 (or l.'i, ixceording to Kboykr). 

 2 2 



Perca Lncioperca, Lin., Syst. Nat, X, Tom. I, p. 289; Retz. 



Fii. Suec. Lin., p. 336; Nilss., Prodv. p. 82; Ekstk. Morkii 



Fisl:, Vet.-Akad. Handl. 1831, p. 89; Reut. et Sundm., 



(Lucioperca) Finl. fiskar, 1, p. 9, tab. III. 

 Liicioperca Sandra, Cuv., Val., Hist. Nat. Poiss., II, p. 110, 



tab. 15; Krover, Damn. Fiske, I, p. 32; Nn.ss., Sk. Fn., 



1. 



l-t-20 ■ 1+21' 

 2 9. 



spinous rays and 21 or 22 soft, tlie first of which is not branched. 



1. 



1 + 11 1 + 12 



' • 2+11 + 2 1. 2 + 13 1. l + i:i + 2 1. 2+13 + 1 (Vid. note li, p. 2G). 



■'■ Number of rows of scales jiarallel to the lateral line I'roni KHI (in small specimens) to loO (in large). 



