196 On British Froihwater Ilarpactids. 



Muller described Cyclops minutus in 1776 and 1785, which 

 afterwards became Gantliocamptus minutus of Baird, Fischer, 

 and Lilljeborg; Claus for this name substituted that of 

 Jurine — Monoculus staphylitius (1820) — and then immedi- 

 ate! j after described another Canthocamptus minutus of his 

 own. Now it will be admitted that, though wnthout the 

 detailed drawings of Jurine, Miiller's figures of C. minutus 

 are excellent representations for the time of a Canthocamptus, 

 and if not sufficient to distinguish it from some recent species, 

 the name ought to be retained for that species which is the 

 most common and the first determined. Therefore I consider 

 that C. staphylinus (Jurine) should become a synonym of 

 Canthocamptus minutus (O. F. Miiller), and that C. minutus, 

 Claus — a name he should not have employed, on account 

 of confusion with Miiller's species, — will have to give way 

 to Rehberg's more recent name C. lucidulus. 



" That author was quite right in restoring the name of 

 Miiller's to Jurine and Claus's C. staphylinus, and substi- 

 tuting for Claus's C. minutus his new name of Canthocamptus 

 lucidulus."" 



I may add that, though I leave my notes on these two 

 species as they were written, I quite agree with the Rev. A. M. 

 Norman that 0. F. Miiller's name should be restored, that 

 C staphylinus (Jurine) should become a synonym of 

 C. minutus (Miiiler), and consequently that C. minutus, 

 Claus, will become a synonym of C. lucidulus, Rehberg. 



