-13- 
RTLA 1443 (contd») 
Material: Three microscope slides 
Habitat: 
Diagnosisi 
Mojave River Hatchery, California 
Toxicosis characterized by intestinal peritonitis, liver 
edema and necrosis, and gill inflammation and microaneurysms 
Submitter: 
H, Wolf 
RTLA 1444. American oyster, Crassostrea vlrginica 
Material: 
Habitat: 
Diagnosis: 
Submitter: 
One microscope slide; 1 pathology report; 2 reprints 
Herring Bay: Western shore of Chesapeake Bay 
Xenoma due to ciliated thigmotrichs 
S. V. Otto 
RTLA 1445. Bluntnose minnow, Pimephales notatus 
Materiali 
One gross specimen with 3, white, amorphous lesions: on 
the head; below dorsal fin; and near the vent. Specimen 
also had numerous cutaneous black spots scattered randomly 
over the body surface and fins. 
Habitat: 
Diagnosisi 
Trace Creek, Tennessee 
Epidermal hyperplasia and black spot disease characterized 
by melanophore proliferation in trematode granulomas 
Submitter: 
J. Grizzle 
RTLA 1446. Rainbow trout, Salmo gairdneri 
Material: 
Habitat; 
Diagnosis: 
Submitter: 
One microscope slide 
Fish Springs Hatchery, California 
Poorly-differentiated nephroblastoma 
H. Wolf 
RTLA 1447. Common shiner, Notropls comutus 
Material: 
Habitat: 
Diagnosis: 
Submitteri 
One gross specimen 
Ramapo River, New York 
Protozoan cysts, probably Myxobolus sp. 
C. L. Smith 
RTLA 1448-1461. 
Material: 
Habitat; 
Diagnosis; 
Soft-shell clam, Mya arenaria 
Several himdred whole clams from 14 petroleum spill sites 
Searsport, Maine 
Germinomas (RTLA 1453-1458), intranuclear virus-inclusions 
(RTLA 1458), gill hyperplasia (RTLA 1448-1461), trematode 
parasites (1448-1461), and cytoplasmic inclusions (RTLA 
1448-1451) 
Submitter: 
J. Hurst 
RTLA 1462, Montana (Arctic) grayling, Thymallus arcticus 
Material: 
Diagnosisi 
Two microscope slides; 1 paraffin block 
Excavating fungal granuloma of mandible associated with 
ectopic bone formation 
Submitter: 
C. E. Smith 
RTLA 1463-1465. 
Clownfish, Amphlprlon ocellaris 
