43 



— a proportion which is to be considered as quite accideiital , as 

 sometimes ouly two or three , sonietimes six or eight of these 

 fisbes were taken out of tbe coutents of a kuilnet and tbese 

 almost always — or nearly so — belonged to the same species. 

 I give bere in two different tables the lengtb and tbe nuraber 

 of tbe rays of the fins of the Httle flatfisbes I have investigated. 



a. Plaice. Pleuronectes platessa. 



