-25- 
RTLA 2195. Blue mussel, Mytllus edulls 
Material: One mlcrosllde 
Habitat: Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
Diagnosis: Generalized disseminated inflammatory reaction due 
to worms (Trematoda) in gut, a fluke in connective 
tissue and ciliates, Ancistrocoma sp., on the gills 
Submitter: W. A. Heath 
RTLA 2196. Blue mussel, Mytilus edulis 
Material: One mlcrosllde 
Habitat: Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
Diagnosis: Parasites in gut 
Submitter: W. A. Heath 
RTLA 2197. Blue mussel, Mytilus edulis 
Material: One microslide 
Habitat: Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
Diagnosis: Parasites in gills and kidney 
Submitter: W. A. Heath 
RTLA 2198. Blue m.ussel, Mytilus edulis 
Material: One microslide 
Habitat: Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
Diagnosis: Parasites in gills 
Submitter: W. A. Heath 
RTLA 2199, 2200. 
Material: 
Habitat: 
Diagnosis: 
Submitter: 
Blue mussel, Mytilus edulis 
One microslide each 
Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
"Normal" controls 
W. A. Heath 
RTLA 2201. Blue mussel, Mytilus edulis 
Material: One mlcrosllde 
Habitat: Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
Diagnosis: Granulomas in foot muscle and digestive diverticula 
Submitter: W. A. Heath 
RTLA 2202. Blue mussel, Mytilus edulis 
Material: One microslide 
Habitat: Inlet polluted by pulpmill effluent in British 
Columbia, Canada 
Diagnosis: Distal obstruction of the gut 
Submitter: W. A. Heath 
