Table 3.5.1. Summary of major taxonomic groups for the west-coast shelf region 
wide. 
Taxonomic Group 
Number identifiable taxa 
% Total identifiable taxa 
Phylum Protozoa 
1 
0.1 
Phylum Porifera 
1 
0.1 
Phylum Cnidaria 
Class Hydrozoa 
10 
0.7 
Class Anthozoa 
52 
3.5 
Phylum Platyhelminthes 
9 
0.6 
Phylum Nemertea 
32 
2.2 
Phylum Nemata 
1 
0.1 
Phylum Sipuncula 
10 
0.7 
Phylum Mollusca 
Class Gastropoda 
112 
7.5 
Class Aplacophora 
10 
0.7 
Class Bivalvia 
116 
7.8 
Class Polyplacophora 
6 
0.4 
Class Scaphopoda 
9 
0.6 
Phylum Echiura 
6 
0.4 
Phylum Annelida 
Class Polychaeta 
648 
43.7 
Class Clitellata 
Subclass Hirudinea 
1 
0.1 
Subclass Oligochaeta 
1 
0.1 
Phylum Arthropoda 
Subphylum Crustacea 
Class Malacostraca 
Order Leptostraca 
3 
0.2 
Order Decapoda 
49 
3.3 
Order Mysida 
6 
0.4 
Order Cumacea 
39 
2.6 
Order Tanaidacea 
16 
1.1 
Order Isopoda 
43 
2.9 
Order Amphipoda 
202 
13.6 
Class Maxillopoda 
5 
0.3 
Class Ostracoda 
14 
0.9 
Subphylum Chelicerata 
7 
0.4 
Phylum Phoronida 
2 
0.1 
Phylum Ectoprocta 
1 
0.1 
Phylum Brachiopoda 
2 
0.1 
Phylum Echinodermata 
Class Asteroidea 
4 
0.3 
Class Ophiuroidea 
25 
1.7 
Class Echinoidea 
8 
0.5 
Class Holothuroidea 
19 
1.3 
Phylum Hemichordata 
5 
0.3 
Phylum Chordata 
7 
0.5 
Total 
1482 
100 
82 
