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RTLA 2466. Amberjack, Serlola sp. 
Material:' Two pieces of tissue from body cavity 
Diagnosis: Dehydrated egg mass 
Submitter: W. Kandrashoff 
RTLA 2467. Sailfish, Istiophorua platypterus 
Material: 
Habitat: 
Diagnosis: 
Liver with attached mass 
Florida: in Gulf Stream off of Miami Beach 
Acute and chronic inflammation, enteritis of gut 
and pyloric caeca with mucosal sloughing, liver 
granulomas and caecal, intestinal and vascular 
smooth muscle hyperplasia in response to trematode 
infestation 
Submitter: 
W. Kandrashoff 
RTLA 2468. Tiger salamander, Ambystoma tigrlnum 
Material: 
Habitat: 
Liver with mass on the tip 
Texas, Hurlwood: Lubbock County, Reese Air Force 
Diagnosis: 
Submitter: 
Base sewage lagoon 
Unusually large focus of normal hematopoiesis 
R. S. Anderson 
RTLA 2469. Fathead minnow, Pimephales promelas 
Material: 
Two microslides; 6 electron micrographs — animal 
experimentally exposed to ammonia 
Habitat: 
Montana, Bozeman: U. S. Department of the Interior 
Fish Cultural Development Center Laboratory 
Diagnosis: 
Submitter: 
Reprint: 
Proliferative leptomeningitis, chemically-induced 
C. E. Smith 
Smith, C. and Thurston, R. B. Potential usefulness 
of the fathead minnow Pimephales promelas in car- 
cinogenicity testing: proliferative lesions in the 
brain induced by ammonia exposure. Proceedings of 
A Symposium on the Use of Small Fish Species in 
Carcinogenicity Testing, December 8-10, 1981, Na¬ 
tional Institutes of Health, Bethesda, Maryland. 
National Cancer Institute Monograph, (in press). 
RTLA 2470. Black bullhead, Ictalurus melas 
Material: One microslide; 1 color transparency; reprint 
Habitat: 
Alabama: final oxidation pond of the Tuskegee sew¬ 
age treatment plant 
Diagnosis: 
Submitter: 
Reprint: 
Epidermal papilloma 
J. Grizzle 
Grizzle, J. M., T. E. Schwedler, and A. L. Scott. 
1981. Papillomas of black bullheads, Ictalurus 
melas (Rafinesque), living in a chlorinated sewage 
pond. J. Fish Dis., 4:345-351. 
RTLA 2471. Black bullhead, Ictalurus melas 
Material: 
Habitat: 
Two microslides 
Alabama: final oxidation pond of the Tuskegee sew¬ 
age treatment plant 
