84.2 ASELLID ZA. 
its base, and with its extremity forming two wide but 
shallow emarginations, within which are affixed two long 
caudal appendages (or uropoda), composed of an oblong 
basal joint, supporting two elongated branches. On its 
under surface the tail bears two opercular plates, divided 
transversely by an articulation across the middle, which 
cover the branchial plates, and bear at the base a com- 
plex apparatus in both sexes. 
The only British species, and two others, natives of 
North America, occur in fresh-water ponds and lakes. 
The following vignette, taken for us by the Rev. J. M. 
Joass, of Eddestown, is a view of the Blasted Heath of 
Shakespeare, Forres seen in the distance, taken near a 
pool from which the Rev. George Gordon has sent us 
some very large specimens of Asellus aquaticus. 

















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ae NU ae Mrz 
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“7 
THE BLASTED HEATH, FORRES. 
