THIRTEEN CUMACEA FROM THE FIRTH OF CLYDE. 47 



VII. 



NOTICE OF THIRTEEN CUMACEA FROM THE 

 FIRTH OF CLYDE. 



BY DAVID KOBEBTSON, F.L.S., F.G.S. 



[Reid 26th February, 1889.] 



Although the Cumacea of the Firth of Clyde and 

 West of Scotland have been almost wholly overlooked, 

 this neglect cannot have arisen from their want of 

 attractions, for they are a most interesting group of 

 little crustaceans, or from their scarcity, for they 

 are met with from low-water to all depths of the 

 Firth of Clyde, in mud, sand, and gravel, as well as 

 plentifully between tide-marks in all our sandy 

 sheltered bays. Those species that inhabit the sand 

 burrow into it, not straight downward with their 

 head foremost, but by wriggling into it, much in 

 the manner of the flounders, crabs, and such amphi- 

 pods as Bathyporeia pilosa, etc. Others are found 

 between tide-marks adhering to stones, and some 

 are also met with in the surface-net, chiefly after 

 sunset. 



The value of the following short list has been 

 greatly increased by the species having been all 

 submitted to and identified by the Rev. Canon 

 Norman : 



Class CRUSTACEA. 



Order Cumacea. 



Cuma scorpioides Montagu. 



Taken in surface-net after sunset ; depth 4-5 fathoms, 

 Blackwaterfoot, Arran. 



