— Marine Dredgings and other Natural History Materials. 169 
as far as possible, to follow the arrangement and nomen- 
clature of recent and authoritative works on each particular 
group. 
The fishes are arranged here in the order in which they 
occur in the late Mr Day’s work on British Fishes. The 
Mollusca are all arranged and named according to part iv. of 
Dr Norman’s Catalogues (“Museum Normanianum”). In 
the arrangement of the Crustacea, I have followed part 11. of 
Dr Norman’s Catalogues for the “higher” Crustacea, and 
Professor Henderson’s “ Decapod and Schizopod Crustacea 
of the Clyde” has also been consulted; the Amphipoda are 
arranged and named in accordance with vol. i. of Professor 
G. O. Sars’ “Crustacea of Norway,” recently published ; 
Dr Brady’s “Monograph of the British Copepoda” has 
been followed in the arrangement of that group; while 
in the arrangement of the Ostracoda the Monograph by 
Drs Brady and Norman has been consulted. Professor 
Jeffrey Bell’s recently published “Catalogue of the British 
Echinodermata” is followed as to the Starfishes and Echini; 
while with regard to the Foraminifera the arrangement 
and nomenclature are those of part vill. of Dr Norman’s 
Catalogues. 
A considerable amount of time and care have been bestowed 
on the examination of the material, and the identification of 
the various organisms contained in it, and I desire in 
connection therewith to acknowledge my indebtedness 
to Mr William Eagle Clarke, F.LS., of the Museum of 
Science and Art, Edinburgh, for identifying the fishes in 
the collection; to Dr G. W. Chaster, of Southport, 
Lancashire, for revising the list of Foraminifera, and 
identifying the more obscure and difficult species; and 
to Rev. T. R. R. Stebbing and Professor W. A. Herdman, 
F.R.S., for assistance with other groups; while my son has 
_ prepared drawings of what appears to be an undescribed 
~Amphipod. 
The following is a tabular view of the chief groups repre- 
sented in the collection, their principal subdivisions, and 
the number of species belonging to each :— 
