Z56 PERCH. Class IV. 



>*• 



of the covers of the gills ferrated: on the lower end 



of the largeft is a fharp fpine. 



The firfl: dorfal fin confifts of fourteen ftrong 

 fpiny rays : the fecond of fixteen fofc ones : the 

 pedtoral fins are tranfparent, and confifl of fourteen 

 rays ; the ventral of fix ; the anal of eleven. 

 The tail is a little forked. 

 Color. The colors are beautiful : the back and part of 



the fides being of a deep green, marked with five 

 broad black bars pointing downwards : tl>e belly is 

 white, tinged with red : the ventral fins of a rich 

 fcarlet -, the anal fins and tail of the fame color, but 

 rather paler. 

 Crooked In a lake called Llyn Raithlyn^ in Merioneth/hire^ 



PfiRCH. jg ^ ^gj.y fingular variety of perch: the back is 

 quite hunched, and the lower part of the back 

 bone, next the tail, ilrangely diftorted . the color, 

 and in other refpefts, it refembles the common 

 kind, which are as numerous in the lake as thefe 

 deformed fifh. They are not peculiar to this water, 

 for Linnaus takes notice of a fimilar variety found 

 at Fahlun^ in his own country. I have alfo heard 

 that it is to be met with in the Thames near Mar- 

 low. 



A«^fa| 



