REMARKS AND OBSERVATIONS 



LINNEAN AQUATIC COLEOPTERA. 



LiNNEUs and Fabricius very properly threw 

 together the Aquatic groups, and certainly did 

 not in the present instance so outrageously violate 

 the Natural System, as later writers have sub- 

 sequently done by their artificial arrangements. 

 Fabricius, by means of the genus Scolytus, (now 

 the Omophron of Latreille) passes from the 

 Caraboidea to the Aquatics, and if we regard the 

 habits of that genus, and compare the form of it 

 with Haliplus or even with Paelobius, we shall 

 with difficulty find another genus, which so satis- 

 factorily connects the above groups. Other links 

 might be mentioned, which will be found in the 

 various opinions recorded by Entomologists, but 

 the above is sufficient for our purpose, and we 

 therefore proceed to remark on the two grand 



