462 
ME. W. E. HOYLE ON THE DEEP-WATEE 
Discussion oe the Results. 
The above Table may be summarized in the more condensed 
one given below, in which the number of species of each group 
of animals from each basin is showu. 
Arran Basin. 
Upper Loch Fyne. 
Loch Striven. 
Dunoon Basin. 
Loch Goil. 
Upper Loch Long. 
Gareloch. 
Brodick 
Basin. 
Kilbrennan 
Basin. 
Inclimarnock 
Basin. 
Cum brae 
Basin. 
Total. 
Pisces 
10 
29 
12 
7 
36 
6 
6 
20 
3 
5 
7 
Tunicata 
1 
6 
6 
5 
2 
3 
1 
Mollusca 
24 
26 
46 
16 
61 
20 
13 
21 
18 
8 
7 
Brachiopoda 
1 
1 
1 
Polyzoa 
31 
1 
31 
Crustacea 
24 
29 
46 
34 
75 
20 
16 
31 
14 
16 
15 
Vermes 
6 
3 
6 
9 
4 
1 
4 
5 
1 
1 
Echinodermata . . . 
3 
12 
12 
6 
18 
8 
5 
13 
6 
6 
3 
Ccelenterata 
26 
5 
1 
27 
3 
1 
2 
2 
1 
Porifera 
7 
4 
8 
2 
3 
1 
Totals 
68 
163 
139 
64 
to 1 
1 
! 
69 
42 
93 
54 
39 
33 
In dealing with these figures great caution must be observed, 
and it must always be borne in mind that no locality can ever 
be said to be really exhausted. The number of dredgings upon 
which the present inquiry is based will only suffice as a basis 
for very general conclusions. This has been abundantly evident 
during the progress of the work, for tables like the above have 
been drawn up several times, and it has been noticed that each 
successive addition of new data has increased the likeness of the 
faunas of the different basins to each other. 
Certain sources of error must also be avoided ; for instance, it 
was apparent, from an examination of the various lists, that the 
Polyzoa and ITydrozoa had only been exhaustively examined in 
