ON DREDGING OFF THE DURHAM AND N. -YORKSHIRE COAST. 185 



become a serious strain upon the resources of the Society, more especially 

 now that the aids from the Association and from private sources have already 

 been continued for the period which had been assigned to them. 



The Committee have reason to believe that these abstracts supply an 

 important need for the advancement of our science, and that they are highly 

 valued by the members of the Society and other chemists. 



They confidently trust that the Society may be able to carry on the im- 

 portant work which has been thus auspiciously commenced ; and they con- 

 gratulate the Association on the service which it has rendered to science 

 by supplj'ing to that enterprise the aid which was absolutely needed in its 

 infancy. 



Report on Dredging off the Coast of Durham and North Yorkshire in 

 1874. By George Stewardson Brady^ C.M.Z.S., and David 

 Robertson, F.G.S. 



A BELEP account of the dredging undertaken by us on the coast was presented 

 to the British Association last year, but no attempt was then made to give 

 lists or detailed observations. The following Report embraces lists of all 

 that came under our notice in the groups of MoUusca, Entomostraca (Ostra- 

 coda and Copepoda), Polyzoa, Hydrozoa, Spongozoa, and Foraminifera. 

 Amongst Echinodermata our captures did not include any species reqiriring 

 special notice, whilst among the larger Crustacea (Decapoda) the only species 

 of unusual occurrence in the district were /StenorJu/ncJius Jonc/irostris, Fabr., 

 Portunits dej]uratof, Linn., and Ebcdia twne facta, Mont. Several species 

 belonging to an interesting group of minute Crustaceans not hitherto noticed 

 in the British seas (Isopoda llemigantia of G. 0. Sars) were taken, but we 

 arc not yet able to name more than one or two of them with certainty. 

 Special attention was given to the Acarides, a large number of which were 

 obtained, and amongst them some previously nndescribed species which have 

 been figured and described by one of us in the ' Proceedings of the Zoological 

 Society' for the present year. But the greatest number of novelties occurred 

 amongst the Copepoda, 28 species of this group being new to science, and 11 

 new to British records. 



The MoUusca, Ostracoda, and Foraminifera of the N'orthumberland and 

 Durham coasts had been so fully investigated by the Dredging-Expeditions 

 of the Tyneside Naturalists' Field-Club, undertaken with the help of the 

 British Association in the years 1862, 1863, 1864, that little was left to be 

 done in those branches. But, as might be expected, notwithstanding that 

 much of the ground had already beeu well searched, we are now able to add 

 to the niunber of species noted in the previous Ecports, while, on the other 

 hand, some species contained in the earlier lists arc absent from ours *. 



To the list of Testaceous Mollusca prepared by the late Mr. Alder from the 



* It must be noticed, however, that tlie area embraced in our dredgings of last year 

 (1874), though of nearly similar extent, is not quite identical with that investigated by the 

 Tyneside Field-Club in the years 18(i2-6Jr. The present Report refers to the coast of 

 Durham and the northern part of Yorkshire as far as Scarborough, while those of the earlier 

 expeditious embraced the seaboard of tlie two comities of Durham and Northumberland, 

 thus reaching nearly sixty miles fm-tber north, while, on the other hand, our last year's 

 csplorationa went about thirty-five miles further south than those of ten years ago. 



