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ΡΥ 
ON BRITISH MARINE ZOOLOGY. 195 
! 
The above sets of tables concern mainly the Testacea and Echinodermata. 
A statement of the results of the search for plants and for animals of other 
classes and orders is given in a less formal manner in supplementary para- 
graphs. 
To show the range of the several species of Testacea and Echinodermata 
as perfectly as possible, the lists of English and Scottish species are drawn 
up separately. Each are moreover grouped under provinces, these provinces 
being not merely sections of the coast chosen for convenience, but areas pre- 
senting peculiar zoological : features of their own, dependent on causes which 
are briefly discussed in the general observations offered in the latter part of 
this Report. 
The English provinces which have contributed materials to this Report are 
five:—Ist, the coasts of Hants and Dorset; 2nd, the coasts of Cornwall and 
Devon; 3rd, South Wales and the British Channel; 4th, North Wales and 
the neighbouring sea; and 5th, the sea around the Isle of Man. 
The Scottish provinces (western and northern) are also five:—Ist, the 
Clyde region ; 2nd, the Inner Hebrides; 3rd, the Outer Hebrides and the 
sea off Suthbrigddaire: ; 4th, the Orkney Blids : and 5th, the Zetland 
Islands. 
As all these provinces, English and Scotch, have been personally explored 
by myself, I am enabled, in tabulating the contents of the dredging papers 
and the isolated observations on depth embodied in the list of species, to 
judge with greater accuracy than I otherwise could have done of the value 
and bearing of the data, and to venture with greater confidence on the general 
considerations which follow. 
The reader must bear in mind constantly that the object of the following 
papers and tables is πού to give a complete enumeration of the animals in- 
__ habiting each province, but to present an authentic series of accurate obser- 
vations on the distribution of such species as can only be procured by the aid 
of the dredge. 
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