72 



THE ANGLER-NATURALIST. 



in a point. Colouring of upper part of body and head generally, 

 light olive-brown, merging into a yellowish brown on sides, growing 

 silvery white towards the belly ; back, back-fin, and tail spotted with 

 brown ; pectoral, ventral, and anal fins pale brown. 



Fin-rays: D. 14+12: P. 13: V. 1+5: A. 2+5: C. 17. 



The vignette gives a magnified representation of the 

 Argulus foliaceus of Jurine, a parasite occasionally found 

 on Trout, Pike, and other fresh- water fish. The figure on 

 the left represents the upper surface in a male, that on the 

 right the under surface in a female, and the small figure in 

 the centre the insect of the natural size. 



ARGULUS FOLIACEUS. 



MALE. 



FEMALE. 



