Land and Fresh-Water Crustacea around Edinburgh. 81 
the same smooth and polished surface, and in colour 
approaching very closely some of the darker varieties of 
Armadillo. The Glomerus has also the same habit of rolling 
itself into a ball when alarmed; but the difference between 
Armadillo and Glomerus is seen to be very marked by 
examining the number of feet in each. In the Isopods each 
body segment has no more than one pair of feet, whereas in 
Glomerus and other millipedes there are two pairs to each 
seoment, so that Glomerus has a much greater number of feet 
than the Armadillo. 
I have not had time to work up the district so thoroughly 
as I desired, or as it is desirable to do, and would therefore 
be glad of any assistance in the way of specimens or authentic 
notices of species of fresh-water and land Crustacea occurring 
within the area referred to in this paper. Such assistance will 
be duly acknowledged. The Isopods are quite harmless, as 
indeed are all the land and fresh-water Crustacea of this 
country at least, and very interesting in their own way when 
one comes to know them. It would be of much interest. if 
the old-fashioned draw-wells, now rapidly disappearing, were 
carefully examined for Crustacea, especially Amphipoda, as 
it is possible that species of Niphargus or Crangonyx may 
exist in some of them. 
1X. Notes on a Collection of Echinoderms and Molluscan 
Shells from the Moray Firth District. Exhibited at the 
Meeting held on 18th March 1891, by THomaAs ScorTt, 
F.L.S., Naturalist to the Fishery Board for Scotland. 
The following “Notes” refer only to some of the more 
interesting forms exhibited. 
ECHINODERMS. 
Arterias hispida, Forbes. This pretty little Asterou was 
dredged in moderately deep water (fully 184 fathoms) at 
Kessock Ferry, at the entrance to the Beauly Firth, near 
Inverness. When living it was easily distinguished from 
the young of the common Asterias by its more spiny appear- 
ance. Several specimens were obtained. 
VOL, XI, F 
