48 



for help m collecting. The important stage of Lerncea, 

 shown on Plate lY., tig. 6, is drawn from a specimen sent 

 by Mr. T. Scott, F.L.S., the author's father. It was 

 fcnnd on the gills of a whiting caught in the Bay of Nigg, 

 Aberdeen, in 1900, and was the only one met with in the 

 course of these investigations. 



