ae 
[Reprinted from ‘‘ The Annals of Scottish Natural History,” April 1893.] 
NOTES ON COPEPODA FROM THE FIRTH OF 
FORTH: LONGIPEDIA CORONATA, CLAUS; 
AND A PRELIMINARY DESCRIPTION OF AN 
APPARENTLY NEW GENUS AND SPECIES. 
By Tuomas Scott, F.L.S., 
Naturalist to the Fishery Board for Scotland, 
and ANDREW SCOTT. 
Prare hs 
Longipedia coronata, Claus, is one of the most beautiful as 
well as one of the most common of the Copepoda in the 
British Seas, and has long been familiar to us. 
It belongs to the Harpactsicide@, a family not only very 
extensive, but which also includes many interesting and 
curious species. As regards distribution, Longzpedza coronata 
is to be obtained in a great variety of places, and at very 
various depths ; it usually lives on or near the bottom, and is 
thus much more frequently obtained in materials collected by 
means of the dredge than in tow-net gatherings. Its favourite 
habitat seems to be among the zoophytes and weeds of the 
littoral and coralline zones. 
Though many hundreds of specimens have passed through 
our hands, especially during the last few years, so that its 
appearance has become familiar to us, we have nevertheless 
had our suspicions occasionally aroused as to whether there 
were not really two species mixed up together under the 
name Longipedia coronata as understood by British Carcin- 
ologists. On several occasions during the past few years a 
partial investigation has been made by us for the purpose of 
ascertaining whether there were really two species or not; 
but from want of time, or from some other cause, no satisfactory 
solution was arrived at. On referring to some of the litera- 
ture dealing with the Copepoda, it was ascertained that a 
certain amount of dissatisfaction had been expressed by 
various authors with the diagnosis of Longipedia coronata as 
given in “ Die freilebenden Copepoden” and in the “ British 
This plate will be issued with the July number. 
