-9- 
RTLA 2235. Sea lamprey, Petromyzon marlnus 
Material: One microslide (controls: RTLA 2227) 
Habitat: Ocqueoc River, Presque Isle County, Michigan 
Diagnosis: Teratoid anomaly 
Submitter: G. W. Piavis 
Reprint: (see RTLA 2227) 
RTLA 2236. Ocean pout, Macrozoarces amerlcanus 
Material: 
Habitat: 
Diagnosis: 
Submitter: 
Section of body wall with raised lesion; piece of 
tissue excised from body wall containing portion 
of lesion 
Offshore: Quiogue, New York 
Myopathic microsporidan (Pleistophora macrozoarcldis ) 
infection, resulting in hypertrophy and destruction 
of skeletal muscle bundles and exuberant granulomatous 
reaction 
E. I. Coher 
RTLA 2237. Pinfish, Lagodon rhomboides 
Material: Head; a section of body with pectoral and pelvic 
fins; piece of body wall with nodular growth 
Habitat: North Biscayne Bay, Miami, Florida 
Diagnosis: Granulation tissue containing a trematode 
Submitter: W. Kandrashoff 
RTLA 2238. Chinook (king) salmon, Oncorhynchus tshawytscha 
Material: 
Habitat: 
Diagnosis: 
Submitter: 
A portion of a growth which had disintegrated into 
tissue bits with the exception of outer wall which 
had remained intact 
Dworshak National Fish Hatchery, Idaho 
Possible mesothelioma 
C. E. Smith 
RTLA 2239. Rainbow trout, Salmo gairdneri 
Material: Two adjacent pieces of growth near thymus; 2 microslides 
Habitat: Yellowstone Trout Ranch, Emigrant, Montana 
Diagnosis: Hemangioendotheliosarcoma 
Submitter: C. E. Smith 
RTLA 2240. Eastern king snake, Lampropeltis getulus getulus 
Material: Five microslides; 1 smear; pathology report 
Diagnosis: Malignant lymphoma — poorly-differentiated l 5 nnphocytic 
type 
Submitter: E. R. Jacobson 
RTLA 2241. Chinook (king) salmon, Oncorhynchus tshawytscha 
Material: An abdominal growth 
Habitat: Klamath River, Del Norte County, California 
Diagnosis: Mesothelioma — focal mixed mesothelial type 
Submitter: G. L. Hendrickson 
