10 
RTLA 936. Firebellied newt, CynoT:)S pyrrho^aster 
Material: One microscope slide 
Diagnosis: Epidermal papilloma 
Submitter: Sc V. Bryant 
Reprint: Bryant, Susan Vc Spontaneous Epidermal Tumor in an Adult 
Newt, Cynops pyrrhogaster . Cancer Res., 623-625. 1973, 
RTLA 937. Northern pike, Esox lucLus 
Material: Two gross specimens irradiated with 400 R, one of which 
was also covered with cutaneous black spots, plus an un¬ 
treated control 
Diagnosis: Black spot disease (granulomas) due to encysted metacer- 
caria presumably of Neodiplostimum cuticola . Blood pic¬ 
ture from irradiated fish in normal range. 
Submitter: E. R. Brown 
RTLA 938. Northern spiky dogfish, Squalus blainvilli 
Material: Large growth with metastases and some surrounding normal 
liver; 3 color transparencies 
Diagnosis: Probable neurilemmoma (Schwannoma) 
Submitter: Pe M. Hine 
RTLA 939. Snapper, Chrysophrys auratus 
Material: Portion of backbone with a large ovoid growth deriving 
from the area of the backbone 
Diagnosis: Mycotic granuloma 
Submitter: P. M. Hine 
RTLA 940. Chinook salmon, Oncorhynchtis tshawytscha 
Material: A large ovarian mass (solid growth adjacent to the 
ovary) and roe 
Diagnosis: Normal testis; fish is bisexual 
Submitter: J. G. Hnath 
RTLA 941. Butterfly fish 
Material: One gross specimen with black growth involving second 
and third dorsal spines 
Diagnosis: Benign melanoma arising from dermal melanophores 
Submitter: A. C. Smith 
RTLA 942. Rainbow trout (Steelhead), Salmo gairdneri 
Material: A growth and muscle from abdominal wall 
Diagnosis: Neurofibroma (Schwannoma) 
Submitter: G. R. Bell 
RTLA 943. Armored catfish, Corydoras sp. 
Material: Three microscope slides of the spinal cord 
Diagnosis: Parasitized by Myxosporida (Myxobolus sp.) 
Submitter: G. E. Cosgrove 
RTLA 944. Tiger salamander, Ambystoma tigrinum 
Material: One gross specimen with 4 skin lesions 
Diagnosis: 1, 3, & 4 - Epidermal papilloma; 2 - normal variation 
Submitter: F. L. Rose 
